Explain Two Different Types Of Evidence Used To Show That The Earth Is Warming. (2024)

Biology High School

Answers

Answer 1

Answer:

Hello the answer is in explanantion

Explanation:

Global temperature records: Over the past century, global temperature records show that the average temperature of the Earth's surface has increased by about 1 degree Celsius (1.8 degrees Fahrenheit). This may not sound like a lot, but it is a significant change in the context of the Earth's climate history.

Melting glaciers and ice caps: Glaciers and ice caps are melting at an unprecedented rate in many parts of the world. For example, the Greenland ice sheet, which is the second-largest ice sheet in the world, is losing an estimated 260 billion tons of ice per year. This melting has led to rising sea levels, which threaten to flood coastal communities and low-lying islands. The melting of glaciers and ice caps is also disrupting ecosystems and water supplies in many regions.

Related Questions

how does amino acid divergence compare to nucleotide divergenc

Answers

Amino acid divergence is a more sensitive measure of evolutionary relationships than nucleotide divergence because it reflects the functional changes that have occurred in the protein sequence over time.

Amino acid divergence and nucleotide divergence are two measures of genetic variation that can be used to study the evolutionary relationships between different organisms or genes.

Amino acid divergence refers to the differences in the amino acid sequences of proteins between different organisms or genes. Amino acid divergence is generally considered to be a more informative measure of evolutionary relationships than nucleotide divergence because it reflects the selective pressures that have acted on the protein sequence over time, rather than just the neutral mutations that have accumulated in the DNA sequence.

Nucleotide divergence, on the other hand, refers to the differences in the DNA or RNA sequences between different organisms or genes. Nucleotide divergence can be used to estimate the time since two organisms or genes shared a common ancestor, as well as to infer the mechanisms of molecular evolution that have shaped the sequences.

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During the retreat of a glacier, pebbles and bare rock that were under the sheet are exposed to the air.

Answers

The land and rocks that the glacier had previously hidden are now exposed as the ice melts and the glacier recedes. These pebbles might be anything from small particles to massive boulders, and they may have been trapped inside the glacier or displaced by the ice as it moved.

The exposed rock and debris that the retreating glacier left behind are frequently unsorted and can create landforms like moraines, which are mounds of material that was deposited by the glacier. Because freshly exposed surfaces may experience weathering and erosion and because changes in the soil and vegetation may have an impact on plant habitats, the uncovering of previously buried rock and debris can also have substantial effects on the surrounding landscape and ecosystems.

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You use a cotton swab to collect bacteria from the bottom of your shoe for an experiment. Why do you need to discard the swab in a biohazard bag when finished with it? a.The cotton swab came into contact with a media plate b.Everything used in a microbiology lab goes in biohazard regardless of the luzard it presents c.The swab is now contaminated with microbes from the environment and should not be discarded with normal trash d.The swab contains a culture medium that could facilitate bacterial growth

Answers

The correct answer is c.

The swab is now contaminated with microbes from the environment and should not be discarded with normal trash. When collecting bacteria from the bottom of a shoe, the cotton swab comes into contact with various microorganisms that may be harmful to human health. Therefore, it is important to dispose of the swab properly in a biohazard bag to prevent any potential contamination of the environment. Even if the swab did not come into contact with a media plate or contain a culture medium, it still should be treated as a biohazard due to the possibility of carrying harmful bacteria.

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What are Pr and vrcalled? Is their use limited to isentropic processes?

Pr is pressure ratio and vr is relative specific ratio. Their use is not limited to isentropic processes only.
Pr is relative pressure and vr is relative specific volume. Their use is not limited to isentropic processes only.
Pr is pressure ratio and vr is relative specific ratio. Their use is limited to isentropic processes only.
Pr is relative pressure and vr is relative specific volume. Their use is limited to isentropic processes only.

Answers

Pr stands for pressure ratio, which is the ratio of the exit pressure to the inlet pressure in a fluid flow. vr stands for relative specific ratio, which is the ratio of the specific volume of a fluid at a certain state to the specific volume of the fluid at a reference state. (C)

It is commonly used in thermodynamics and fluid mechanics to describe the performance of devices such as turbines, compressors, and nozzles. The pressure ratio is an important parameter that affects the efficiency and power output of these devices.

It is also used in thermodynamics and fluid mechanics to describe the behavior of fluids in different processes.

The relative specific volume is an important parameter that affects the properties of fluids, such as their density and compressibility.

Both Pr and vr are not limited to isentropic processes only. They can be used to describe the behavior of fluids in any process, including non-isentropic processes. However, in isentropic processes, the values of Pr and vr remain constant throughout the process, which makes them particularly useful in these types of processes.(C)

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Complete question:

What are Pr and vrcalled? Is their use limited to isentropic processes?

A. Pr is pressure ratio and vr is relative specific ratio. Their use is not limited to isentropic processes only.

B. Pr is relative pressure and vr is relative specific volume. Their use is not limited to isentropic processes only.

C. Pr is pressure ratio and vr is relative specific ratio. Their use is limited to isentropic processes only.

D. Pr is relative pressure and vr is relative specific volume. Their use is limited to isentropic processes only.

VETERINARY SCIENCE!!!
While holding her beloved pug, Bianca listens as the veterinary scientist shows her x-rays that were taken earlier in the day. He tells Bianca that the x-ray clearly shows that her dog's caput is misshapen, keeping it from fitting well in the joint. To what part of the x-ray is the veterinarian MOST likely pointing?

the bottom of the pug's torso.

the area around the pug's tail.

the top of the pug's femur.

the top of the pug's radius.

Answers

The veterinarian is most likely pointing to the top of the pug's femur, as this is where the "caput" or head of the femur bone is located.

If the caput is misshapen, it can cause problems with the way the femur fits in the hip joint, which can lead to pain and difficulty walking. The other parts of the dog's body mentioned (bottom of torso, area around the tail, top of the radius) are not directly related to the hip joint or the caput of the femur bone.

Therefore, The veterinarian is most likely pointing to the top of the pug's femur, as this is where the "caput" or head of the femur bone is located.

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A(n) __________ refers to a specific factor that has a range of possible values.
A.
hypothesis
B.
method
C.
variable
D.
observation

Please select the best answer from the choices provided

Answers

Hypothesis (correct me if I’m wrong)

Answers

Answer:

1:liquid and gas

2: water vaper gas

Explanation:

How would you characterize the trauma to this individual's mandible? [37] O A perimortem sharp force O B perimortem blunt force O C antemortem blunt force O D antemortem sharp force

Answers

The answer is Option B: Perimortem Blunt Force. This means that the individual sustained a traumatic injury to their mandible at or near the time of death, likely caused by a blunt object striking their body.

What is Perimortem trauma?

Perimortem trauma refers to an injury that occurs at or near the time of death, and can be classified as either blunt or sharp force trauma. Blunt force trauma is typically caused by a blunt object striking the body, such as a hammer or a fist, and results in a crushing or contusion injury. In this case, the individual sustained a traumatic injury to their mandible, which is consistent with blunt force trauma.

Sharp force trauma is typically caused by a sharp object, such as a knife or a shard of glass, and results in a laceration or incision wound. In this case, the individual sustained a traumatic injury to their mandible, which is inconsistent with sharp force trauma.

Therefore, the correct answer is Option B: Perimortem Blunt Force.

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these very small bones are at the medial wall of each orbit and provides a groove for the tear ducts.

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The small bones that are found at the medial wall of each orbit and provide a groove for the tear ducts are called the lacrimal bones. These bones are located between the maxilla bone, which forms the upper jaw, and the ethmoid bone, which is located at the base of the skull.

The lacrimal bones are thin and delicate and have a curved shape that helps to form the groove for the tear ducts.
The tear ducts are responsible for draining tears from the eyes into the nasal cavity, which is why the lacrimal bones are located near the nose. Without the lacrimal bones and the tear ducts, tears would accumulate in the eyes, causing irritation and discomfort. The lacrimal bones also serve to protect the tear ducts and other delicate structures located within the medial wall of the orbit. In summary, the lacrimal bones play an important role in the anatomy and function of the eye and the tear ducts.

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marti sees a skunk on the yard and goes to the pet telling his mom has found a kitty Marti says "bad skunk" which indicates:
a.Schema
b.Equilibrium
c.Assimilation
d.Accomodation

Answers

Marti's experience with the skunk can be best described using the term "Assimilation" (option C). Assimilation is a cognitive process in which new information is incorporated into an existing schema or mental framework.

In this case, Marti is using her existing schema for cats to interpret the new information about the skunk, which is why she calls it a "kitty". However, her schema for cats is not a good fit for the skunk, which is a different animal with different characteristics and behaviors.

Assimilation is an important process in cognitive development, particularly in the early stages of life when children are still building their understanding of the world around them. As children encounter new experiences and information, they attempt to assimilate them into their existing schemas, which helps them to make sense of the world. However, as they encounter more complex or contradictory information, they may need to engage in a process of accommodation, which involves modifying their existing schemas or creating new ones to better fit the new information.

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If a DNA strands reads TTACGAATC, what will the mRNA strand made from it read?

Answers

Answer:

Explanation:

The mRNA strand made from the given DNA strand would read AAUGCUUAG.

What kind of cells make up the wall of proximal and distal tubules

Answers

Answer: Epithelial Cells

Explanation: The Bowman's capsule opens up into a series of tubules (proximal tubule, loop of Henle, and distal tubule) and then into the collecting duct, all of which are lined by a continuous layer ofepithelial cells.

which condition suppresses lac operon transcription?mchegg

Answers

The lac operon transcription is suppressed when glucose is present in the cell because the presence of glucose causes the catabolite activator protein (CAP) to not bind to the promoter region of the lac operon, thereby inhibiting transcription.

The condition that suppresses lac operon transcription is the presence of high glucose levels and the absence of lactose in the environment. The catabolite repression takes place in this situation, and the lac operon is not transcribed.

This occurs because the cAMP levels are low due to high glucose levels, which prevents the activation of CAP (catabolite activator protein). Without CAP activation, RNA polymerase cannot efficiently bind to the promoter, and transcription of the lac operon is suppressed.

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cellular example of catabolite repression biology

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Cellular example of catabolite repression in biology can be observed in the regulation of the lac operon in E. coli bacteria.

Catabolite repression is a control mechanism in which the presence of a preferred energy source, such as glucose, inhibits the expression of genes related to the metabolism of alternative energy sources. In the case of the lac operon, this system is responsible for the metabolism of lactose when glucose is scarce.When glucose levels are high, cAMP levels decrease, which in turn prevents the activation of the catabolite activator protein (CAP).

CAP is required to initiate the transcription of the lac operon by binding to the promoter region. In the absence of CAP binding, RNA polymerase cannot effectively bind to the promoter, leading to reduced transcription of the genes encoding for lactose metabolism enzymes. Thus, the bacteria prioritize the utilization of glucose over lactose through this catabolite repression mechanism, promoting efficient energy consumption. Cellular example of catabolite repression in biology can be observed in the regulation of the lac operon in E. coli bacteria.

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Fishing is a growth industry, but the fishing consortia are, for the most part, careful to conserve this resource and not to exceed the maximum sustainable yield. (True or False)

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True. Fishing is considered a growth industry because it provides employment and income for millions of people around the world.

However, the fishing consortia or organizations that oversee the industry are aware of the importance of conserving the resource and ensuring that the maximum sustainable yield is not exceeded.

This means that they aim to harvest fish at a level that allows the population to replenish itself, so that fishing can continue in the long term.

This is important because overfishing can lead to a decline in fish populations, affecting not just the fishing industry, but also the ecosystem and the communities that depend on fish for their livelihoods. To ensure sustainability, fishing consortia often set quotas, regulate fishing methods and gear, and monitor fishing activities.

Therefore, while fishing is a growth industry, it is essential that it is managed sustainably to protect the resource for future generations.

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When Manny Johnson received his stem cell therapy, the goal was to a.enhance the production of myoglobin to replace the ineffective hemoglobin. b.destroy the abnormal sickle cell proteins in his blood cells. c.stimulate the production of fetal hemoglobin instead of adult hemoglobin.
d.replace the incorrect nucleotide with the correct nucleotide so the new blood cells would form properly. e.stimulate the production of adult hemoglobin instead of fetal hemoglobin.

Answers

Manny Johnson received stem cell therapy with the goal of stimulating the production of fetal hemoglobin instead of adult hemoglobin. Fetal hemoglobin has a higher affinity for oxygen than adult hemoglobin, which is beneficial for individuals with sickle cell anemia.

Sickle cell anemia is a genetic disorder that causes abnormal hemoglobin to be produced, resulting in misshapen red blood cells that can clog blood vessels and cause pain, organ damage, and other complications. By stimulating the production of fetal hemoglobin, the hope is that Manny's red blood cells will function more effectively and reduce the severity and frequency of sickle cell-related symptoms. This is achieved by using stem cells from a donor with a similar genetic makeup to Manny, and stimulating them to produce healthy red blood cells with the appropriate fetal hemoglobin levels.

In summary, while stem cell therapy is still a relatively new treatment for sickle cell anemia, it shows promising results in improving quality of life for patients and reducing the need for blood transfusions and hospitalizations.

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if carbolfuchsin was omitted from the acid-fast stain, what color would acid-fast cells appear

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If carbolfuchsin was omitted from the acid-fast stain, the acid-fast cells would not be stained and would appear colorless. Carbolfuchsin is a crucial component of the acid-fast stain, as it is a primary stain that penetrates through the waxy cell walls of acid-fast bacteria.

Without it, the acid-fast cells would not retain the stain, and the subsequent steps of the acid-fast stain would not be able to differentiate between acid-fast and non-acid-fast cells. The omission of carbolfuchsin would lead to an incomplete acid-fast stain, which would compromise the accuracy of the test results. Therefore, it is essential to follow the acid-fast stain procedure precisely to ensure accurate detection and identification of acid-fast bacteria.

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VETERINARY SCIENCE!!!
In attempting to educate her patient's owners about the dangers of diabetes mellitus, Lily is putting together a bulletin board for her waiting room. She wants to make sure that owners know the factors that might put their pet at risk of
developing diabetes. Which factor would Lily NOT list on the board?

breed of pet

age of pet

weight of pet

temperament of pet

Answers

In risk of developing diabetes, age of pet would not listed on the board.

Diabetes is a chronic disease that can affect dogs and cats and other animals (including apes, pigs, and horses) as well as humans. Although diabetes can't be cured, it can be managed very successfully.

Diabetic Alert Dogs, also referred to as DADs, are trained to smell the compounds that are released from someone's body when blood sugar is high or low. Because of this, Diabetic Alert Dogs are able to alert their owners of dangerous levels of blood sugar before they become symptomatic.

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reshwater supply iscontinually collected , the

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Fresh water supply is continually collected on the ground or in a stream, river, lake, reservoir, or ocean. This supply is continuously collected, purified, and distributed through natural hydrologic cycle processes.

Fresh water is needed by humans all over the world. Because fresh water is healthier, safer and can be consumed. Data shows that 3% of the earth's water is fresh. Of which 0.5% of the earth's water is available fresh water.

The hydrologic cycle is a process of the natural water cycle. The cycle starts from the water evaporating into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow. There are five processes at work in the hydrologic cycle: Condensation

PrecipitationInfiltrationRunoffEvapotranspiration

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Trace the path of oxygen from the mouth or nose to the body's cells. explain?

Answers

When we inhale, air enters through either our mouth or nose and travels down our windpipe or trachea.

From there, the trachea splits into two tubes called bronchi, which enter into our lungs. Once in the lungs, the bronchi split further into smaller tubes called bronchioles, which end in tiny air sacs called alveoli. It is at this point that the oxygen in the air we breathe is transferred into our bloodstream, while carbon dioxide is removed from our body.
The oxygen-rich blood then travels through the pulmonary veins to the left side of our heart, which pumps it out to the rest of our body through the arteries. The arteries then branch out into smaller blood vessels called capillaries, where the oxygen is delivered to our body's cells. The oxygen is used by our cells to produce energy, while the waste product of this process, carbon dioxide, is transported back to our lungs through our veins to be exhaled out of our body.

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When arctic foxes (Alopex lagopus) were introduced to islands in the Aleutian archipelago, they preyed on the native seabird populations. Normally, seabirds deposit nutrient-rich droppings on the islands, which enrich the soil with phosphorus. When the nutrient levels were reduced, the vegetation shifted from grassland to tundra, creating landscape-level effects. Therefore, in this case, foxes have an indirect positive effect on the presence of grasses.
Group of answer choices
true or false?

Answers

Arctic foxes have an indirect negative effect on the presence of grasses, as they prey on the native seabird populations that deposit nutrient-rich droppings on the islands, which enrich the soil with phosphorus.

When nutrient levels are reduced due to the decrease in seabird populations, the vegetation shifts from grassland to tundra, which results in a loss of productivity and biodiversity. Therefore, the introduction of arctic foxes to the islands has an indirect negative effect on the presence of grasses. The introduction of arctic foxes to the Aleutian archipelago resulted in a trophic cascade. Trophic cascades occur when changes in the abundance of one species in a food web lead to changes in the abundance or behavior of other species. In this case, the introduction of foxes disrupted the natural balance of the ecosystem by preying on seabirds and reducing their populations. This reduction in seabird populations resulted in a decrease in nutrient-rich droppings on the islands, which led to a shift in vegetation from grassland to tundra.

The shift from grassland to tundra is an example of a landscape-level effect. Landscape-level effects are changes in ecosystem structure and function that occur across a large spatial scale, often due to changes in the abundance or behavior of one or more key species. In this case, the loss of grassland habitat due to the fox-induced trophic cascade had a significant impact on the ecosystem as a whole.

Overall, this case highlights the interconnectedness of species in ecosystems and the potential for even small changes to have far-reaching effects. It also underscores the importance of understanding and preserving natural ecosystems, as their loss or alteration can have significant consequences.

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Complete this rule for the movement of DNA fragments through an agarose gel. The larger the DNA fragment; the This diagram represents piece of DNA cut with Hindlll at each of the restriction sites pointed to by the arrows The numbers represent the number of base pairs each fragment: 23,130 2027 2322 9416 6,557 4361 How many fragments were produced by the restriction enzyme Hindill? On the gel diagram, show how you believe these (ragments will sort out during electrophoresis; The two fragments with no length indicated wIIl be too smallto be visualized on the gel. Neoative Poaahvte Label each fragment with its correct number of base pairs:

Answers

The movement of DNA fragments through an agarose gel is determined by their size. The larger the DNA fragment, the slower it moves through the gel matrix. Therefore, the migration of DNA fragments through the gel is inversely proportional to their size.


In the case of the DNA fragments cut by the Hindlll restriction enzyme, we can determine the number of fragments produced by counting the number of cuts made by the enzyme.

From the given information, we can see that Hindlll cut the DNA at five restriction sites, producing six fragments with sizes of 23,130 bp, 2027 bp, 2322 bp, 9416 bp, 6,557 bp, and 4361 bp.

During electrophoresis, the DNA fragments will sort out according to their size, with the smaller fragments migrating faster and the larger fragments migrating more slowly. The fragments will be visualized on the gel as bands, with the smallest fragments appearing at the bottom of the gel and the largest fragments at the top.

To show how the fragments will sort out during electrophoresis, we can draw a gel diagram and label each fragment with its correct number of base pairs.

We can place the smaller fragments at the bottom of the gel and the larger fragments at the top, with the smallest fragment (4361 bp) appearing at the bottom and the largest fragment (23,130 bp) appearing at the top. We can also label the negative and positive poles of the gel, indicating the direction of migration for the DNA fragments.

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Classify the given features, cell types, and tissues as being characteristic of the primary or secondary vascular system. - Bark and cork - Produced from vascular cambium - Found in both herbaceous and woody plants - Found in woody plants only - Wood - Produced from shoot apical meristem - Parenchyma cells, fibers, tracheas and vessel elements

Answers

Bark and cork are characteristic of the secondary vascular system. They are produced from the vascular cambium and are found in woody plants only.

Wood is also characteristic of the secondary vascular system and is produced from the shoot apical meristem. Parenchyma cells, fibers, tracheas, and vessel elements are found in both the primary and secondary vascular systems.

1. Bark and cork: Characteristic of the secondary vascular system, found in woody plants only.
2. Produced from vascular cambium: Characteristic of the secondary vascular system, found in both herbaceous and woody plants.
3. Found in both herbaceous and woody plants: Primary vascular system (example: vascular cambium).
4. Found in woody plants only: Secondary vascular system (example: bark and cork).
5. Wood: Characteristic of the secondary vascular system, found in woody plants only.
6. Produced from shoot apical meristem: Characteristic of the primary vascular system, found in both herbaceous and woody plants.
7. Parenchyma cells, fibers, tracheas, and vessel elements: Characteristic of both primary and secondary vascular systems, found in both herbaceous and woody plants.

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10 For each neurotransmitter, identify the functional class, and then indicate where the hormone is secreted. Neurotransmitter Functional Class Secretion Site acetylcholine nitric oxide glycine norepinephrine endorphins dopamine GABA serotonin glutamate

Answers

Neurotransmitter Functional Class Secretion Site acetylcholine nitric oxide glycine norepinephrine endorphins dopamine GABA serotonin glutamate are explained in details .

In general , Acetylcholine is an excitatory neurotransmitter that is involved in a variety of functions, including muscle movement, attention, learning, and memory. Nitric oxide is a gaseous neurotransmitter that acts as an inhibitor in the central and peripheral nervous systems. Dopamine is a modulatory neurotransmitter that is involved in a variety of functions, including movement, reward, motivation, and attention.

Also, GABA is an inhibitory neurotransmitter that is widely distributed throughout the central nervous system. Serotonin is a modulatory neurotransmitter that is involved in a wide range of functions, including mood, appetite, sleep, and cognition. Glutamate is an excitatory neurotransmitter that is involved in a variety of functions, including learning and memory.

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according to glynn isaac, what hominin behaviors resulted in the accumulation of animal bones at the earliest sites in olduvai gorge and koobi fora?

Answers

According to Glynn Isaac, the hominin behaviors that resulted in the accumulation of animal bones at the earliest sites in Olduvai Gorge and Koobi Fora include:

1. Their use of central places for processing and consuming animal resources.

2. tool-making abilities.

3. potential social or territorial gatherings.

1. Hominins using these sites as central places for processing and consuming animal resources. They brought carcasses or body parts to these locations to butcher, share, and eat.

2. The development of tool-making abilities allowed hominins to extract meat and marrow from animal bones more efficiently, leading to increased consumption and accumulation of bones at these sites.

3. Hominins may have used these locations as social or territorial gathering points, which could have also contributed to the concentration of animal bones at these sites.

In summary, the hominin behaviors that led to the accumulation of animal bones at Olduvai Gorge and Koobi Fora were their use of central places for processing and consuming animal resources, tool-making abilities, and potential social or territorial gatherings.

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Endotherm metabolic rates are steady (unchanging), regardless of changing ambient temperature, as long as the body temperature is normal.TrueFalseFalse but only for mammals, true for snakes.

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Endotherm metabolic rates are steady (unchanging), regardless of changing ambient temperature, as long as the body temperature is normal. This is False but only for mammals, and true for snakes.

Regulation of body temperature:

Endotherms, including mammals and birds, are able to regulate their body temperature internally and maintain a relatively constant metabolic rate even in changing ambient temperatures. However, some species of ectothermic animals, such as snakes, are able to regulate their body temperature through behavioral thermoregulation and can also maintain a steady metabolic rate in varying temperatures. When ambient temperature drops, they increase their metabolic rate to produce more heat, and when the temperature rises, they decrease their metabolic rate to prevent overheating. This ability to regulate body temperature allows endothermic animals to thrive in a variety of environments.

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Which of the following is not involved in the processing of mRNA precursors in eukaryotic cells ?

Answers

The processing of mRNA precursors in eukaryotic cells involves several steps, including capping, splicing, and polyadenylation. These steps are essential for the production of mature mRNA that can be translated into protein.

However, there is one component that is not directly involved in the processing of mRNA precursors, and that is the ribosome. The ribosome is responsible for translating mRNA into protein, but it does not participate in the processing of mRNA precursors.

Instead, it binds to the mature mRNA after it has been processed and exits the nucleus to the cytoplasm, where it can begin translation.

The capping process involves the addition of a 7-methylguanosine cap to the 5' end of the mRNA precursor. This cap protects the mRNA from degradation and helps it to be recognized by the ribosome during translation. The splicing process removes introns from the mRNA precursor and joins the remaining exons together. This ensures that the mature mRNA contains only the coding sequence for the protein. T

he polyadenylation process involves the addition of a poly(A) tail to the 3' end of the mRNA precursor. This tail is important for stability and helps the mRNA to be exported from the nucleus.
In summary, while the ribosome is essential for protein synthesis, it is not directly involved in the processing of mRNA precursors in eukaryotic cells.

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In secondary succession, which happens first?

A. Soil is built
B. Grasses and other annual plants establish themselves.
C. Small shrubs establish themselves.
D. Wind brings lichens and mosses. ​

Answers

The first thing which happens in secondary succession is: (B) Grasses and other annual plants establish themselves.

Secondary succession is the establishment of life in a region where organisms existed earlier but vanished due to some natural disturbances like fire. The region in such case consists of some nutrients and soil and hence these need to be recycled to grow back life. Grasses and small plants can grow in such regions because they can grow in little nutrients conditions.

Annual plants are those which can complete their life cycle in an year. From germination to seed production, every process takes place within a year and such plants die off.

Therefore, the correct answer is option B.

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A. Which of the following doesn't interact directly with DNA?
Group of answer choices
TATA-box binding protein
RNA polymerase II
transcription factors
the mediator complex
B. Changing an RNA sequence following transcription by removing segments is done by ______________.
deacetylation capping polyadenylation the spliceosome DNA binding RNA editing methylation acetylation translation

Answers

A. The mediator complex doesn't interact directly with DNA.

The other options, such as TATA-box binding protein, RNA polymerase II, and transcription factors, all interact directly with DNA during the process of transcription.
B. Changing an RNA sequence following transcription by removing segments is done by RNA Splicing
The spliceosome is responsible for changing an RNA sequence following transcription by removing segments. This process, known as splicing, removes introns from the pre-mRNA, leaving only the exons to form the mature mRNA molecule. The final mRNA thus consists of the remaining sequences, called exons, which are connected to one another through the splicing process.

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What components are necessary to synthesize DNAin vitro?A. DNase I, nucleotides, template, and ATPB. DNA polymerase I, templateC. DNase I, template, nucleotides, magnesium ionsD. DNA polymerase I, template, nucleotides, magnesium ions

Answers

The components necessary to synthesize DNA in vitro are D. DNA polymerase I, template, nucleotides, and magnesium ions.

DNA polymerase is the enzyme responsible for catalyzing the formation of phosphodiester bonds between nucleotides, resulting in the synthesis of DNA strands. A template strand is also required to direct the synthesis of the new complementary strand. Nucleotides are the building blocks of DNA and are necessary for the synthesis of the new strand. Magnesium ions are required as cofactors for the activity of DNA polymerase.

DNase I is an enzyme that degrades DNA and would be counterproductive in synthesizing new DNA strands. ATP is not required for DNA synthesis in vitro, although it may be used as an energy source in some cellular processes. DNA polymerase I alone is not sufficient for DNA synthesis, and a template and nucleotides are also necessary.

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Explain Two Different Types Of Evidence Used To Show That The Earth Is Warming. (2024)

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Explain Two Different Types Of Evidence Used To Show That The Earth Is Warming.? ›

Scientific information taken from natural sources (such as ice cores, rocks, and tree rings) and from modern equipment (like satellites and instruments) all show the signs of a changing climate. From global temperature rise to melting ice sheets, the evidence of a warming planet abounds.

What are two lines of evidence we have that the Earth is warming? ›

Arctic summer sea ice cover has shrunk dramatically. The heat content of the ocean has increased. Global average sea level has risen by approximately 16 cm (6 inches) since 1901, due both to the expansion of warmer ocean water and to the addition of melt waters from glaciers and ice sheets on land.

What are 2 sources of evidence of the effect of human activity on climate change? ›

Observable evidence of rapid climate change includes: Global temperature rise. Warming ocean. Shrinking ice sheets.

What are two examples of evidence that we use to determine past climate on Earth? ›

How Do We Know About Earth's Past Climate?
  • Modern Temp Record. 1880 TO PRESENT.
  • Tree Rings. UP TO 9K YEARS AGO.
  • Positions of Glaciers. UP TO 20K YEARS AGO.
  • Lake Sediments. UP TO 1M YEARS AGO.
  • Ice Cores. UP TO 2M YEARS AGO.

What can different pieces of evidence tell us about our changing climate? ›

Other observations of recent climate change include a global average sea level rise of 8 inches over the last century; declining sea ice, ice sheet, and glacier size; decreased snow cover and longer frost-free seasons; an approximately 30% more acidic surface ocean; and more frequent high-temperature records being set ...

What is the evidence of Earth warming? ›

Scientific information taken from natural sources (such as ice cores, rocks, and tree rings) and from modern equipment (like satellites and instruments) all show the signs of a changing climate. From global temperature rise to melting ice sheets, the evidence of a warming planet abounds.

What are three evidences of global warming? ›

Increasing temperatures are leading to declines in glaciers and sea ice. Other indicators of a warming world include rising sea levels and increases in ocean heat. Watch the video above (and pause to read) to learn more about the evidence that supports global warming.

What are 2 examples of effects of climate change? ›

Effects of Climate Change
  • Hotter temperatures. As greenhouse gas concentrations rise, so does the global surface temperature. ...
  • More severe storms. ...
  • Increased drought. ...
  • A warming, rising ocean. ...
  • Loss of species. ...
  • Not enough food. ...
  • More health risks. ...
  • Poverty and displacement.

What are two pieces of evidence of natural climate change? ›

Plants are blooming earlier in the spring. Mountain glaciers are melting worldwide, and snow cover is declining in the Northern Hemisphere (Learn more here and here). Greenland's ice sheet—which holds about 8 percent of Earth's fresh water—is melting at an accelerating rate (learn more).

What are three types of evidence for climate change? ›

The three types of evidence for climate change are monitoring changes with sensors and measurements, reading historical data collected by humans and reading historical data from natural sources.

How does climate change affect my health? ›

Climate change increases the risk of illness through increasing temperature, more frequent heavy rains and runoff, and the effects of storms. Health impacts may include gastrointestinal illness like diarrhea, effects on the body's nervous and respiratory systems, or liver and kidney damage.

How old is the oldest ice? ›

VIENNA—Samples of eerie blue glacial ice from Antarctica are a staggering 6 million years old, scientists announced last week, doubling the previous record for Earth's oldest ice.

Is it too late to prevent global warming? ›

While the effects of human activities on Earth's climate to date are irreversible on the timescale of humans alive today, every little bit of avoided future temperature increases results in less warming that would otherwise persist for essentially forever.

What is happening to Earth right now? ›

There is unequivocal evidence that Earth is warming at an unprecedented rate. Human activity is the principal cause. Earth-orbiting satellites and new technologies have helped scientists see the big picture, collecting many different types of information about our planet and its climate all over the world.

What are two pieces of evidence other than the change in global temperature that show climate change has taken place? ›

Along with warming at the Earth's surface, many other changes in the climate are occurring, such as: warming oceans. melting polar ice and glaciers. rising sea levels.

What greatly influences the Earth's climate? ›

Solar radiation and its dispersion can greatly influence a climate. Earth's orbit : The shape of the Earth's orbit around the sun can affect the amount of solar energy that reaches the Earth's surface. The ellipse that our planet orbits on is not a circle, so climates can change depending on proximity.

What is global warming in two lines? ›

Global warming is the unusually rapid increase in Earth's average surface temperature over the past century primarily due to the greenhouse gases released as people burn fossil fuels.

What are the two explanations for warming temperatures on Earth? ›

These greenhouse gas emissions have increased the greenhouse effect and caused the earth's surface temperature to rise. Burning fossil fuels changes the climate more than any other human activity. Carbon dioxide: Human activities currently release over 30 billion tons of carbon dioxide into the atmosphere every year.

What are the two things that keeps the earth warm? ›

Earth's surface warms up in the sunlight. At night, Earth's surface cools, releasing heat back into the air. But some of the heat is trapped by the greenhouse gases in the atmosphere. That's what keeps our Earth a warm and cozy 58 degrees Fahrenheit (14 degrees Celsius), on average.

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