2023 Evolution Review

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Which of the following statements best describes the process of natural selection in a population?

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Which of the following observations best supports the conclusion that two animal species evolved from a common ancestor in recent geological history?

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Katydids are insects that live on plants. Their bodies are adapted to look like leaves.

Which of the following best explains why katydids adapted this trait?

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The diagram below shows four types of finches labeled W, X, Y, and Z. The type of finch labeled W adapted different traits over a long period of time that resulted in the three different types of finches labeled X, Y, and Z. What is the most likely reason the finches labeled X, Y, and Z adapted different traits from the finch labeled W?

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The New England cottontail is the only rabbit native to New England. Current populations are small and isolated because of habitat loss. Scientists are concerned about the possible extinction of the New England cottontail.
Which of the following statements explains why having small and isolated populations puts these rabbits at risk for extinction?

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Fossilized remains of prehistoric mastodons show anatomical similarities to modern-day elephants. These similarities provided the first evidence that mastodons were related to modern-day elephants.
Which of the following is the best additional evidence that mastodons were related to elephants?

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Placental mammals are one group of mammals. Using DNA evidence, scientists have concluded that the ancestor of placental mammals diverged from other mammal groups about 160 million years ago.
The analysis of which of the following types of evidence would verify this conclusion? Click all that apply (there are 4)

In a population of beetles, the body colos of individuals range from light to dark. Most of the beetles have an average phenotype (inbetween light and dark).

A fire burns though the beetles' habitat leaving the trees, soil, and some rocks charred black for several years. Most of the beetles and their predators survive the fire and continue to live in the habitat.

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Identify which beetle phenotype or phenotypes will most likely be favored in the habitat after the fire. Explain your answer

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Using your knowledge of natural selection, explain how the change in phenotype distribution will occur.

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Suppose scientists observe a shift in the distribution of body colors in the beetle population over time. Which of the following observations best supports the conclusion that the population has evolved?

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Which of the following is the best evidence that two birds belong to the same species?

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Humans and frogs have similar bone structure in the limbs indcating a common ancestor. This is an example of

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Butterflies and bats both have wings. The wings have the same purpose and different in construction. The wings Do not show ancestry.

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The oldest fossils are in rock layer

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Which of the following statements best describes the process of natural selection in a population?

Which of the following observations best supports the conclusion that two animal species evolved from a common ancestor in recent geological history?

Katydids are insects that live on plants. Their bodies are adapted to look like leaves.Which of the following best explains why katydids adapted this trait?

Fossilized remains of prehistoric mastodons show anatomical similarities to modern-day elephants. These similarities provided the first evidence that mastodons were related to modern-day elephants.Which of the following is the best additional evidence that mastodons were related to elephants?

Identify which beetle phenotype or phenotypes will most likely be favored in the habitat after the fire. Explain your answer

Using your knowledge of natural selection, explain how the change in phenotype distribution will occur.

Suppose scientists observe a shift in the distribution of body colors in the beetle population over time. Which of the following observations best supports the conclusion that the population has evolved?

Which of the following is the best evidence that two birds belong to the same species?

Humans and frogs have similar bone structure in the limbs indcating a common ancestor. This is an example of

Butterflies and bats both have wings. The wings have the same purpose and different in construction. The wings Do not show ancestry.

The oldest fossils are in rock layer

Which of the following best explains how antibiotic resistance spreads through some populations of S. epidermidis?

Katydids are insects that live on plants. Their bodies are adapted to look like leaves.

Which of the following best explains why katydids adapted this trait?

Fossilized remains of prehistoric mastodons show anatomical similarities to modern-day elephants. These similarities provided the first evidence that mastodons were related to modern-day elephants.
Which of the following is the best additional evidence that mastodons were related to elephants?