Term
| Similarities in the structures of two different species provide evidence that the species evolved from a common ancestor. This type of evidence includes similar structures that have different functions. Which of the following pairs of features have a similar structure but have a different function in each organism? |
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Definition
| the front leg of a cat and the wing of a bat |
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Term
The diagram below shows a model of the proposed relationships among some groups of mammals. Which of these organisms is most closely related to whales?
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Definition
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Term
| Tara is comparing the embryos of parrotfish and salamanders. Although the adult organisms look very different, the embryos follow similar developmental pathways. What does this suggest? |
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Definition
| that parrotfish and salamanders likely share a common ancestor |
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Term
The diagram below shows the changes over time in a population of mice in the wild after a population of hawks has moved into their environment. The white and dark mice differ only in color. Which statement is the most likely explanation for why the mouse population changed over time?
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Definition
| The hawks eat more white mice than dark mice because they can see the white mice more easily. |
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Term
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Definition
| a group of organisms of the same species that live in a defined geographical area |
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Term
| Which of the following best describes the role of mutation in natural selection? |
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Definition
| A mutation may result in an adaptive trait that makes an organism more likely to reproduce. |
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Term
| What type of organism dominated life during Precambrian time? |
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Definition
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Term
| Which dating method determines a fossil’s age by comparing it to other fossils? |
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Definition
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Term
| Which of the following was a major milestone that allowed for greater diversity of life during the Paleozoic era? |
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Definition
| Animals moved from the sea to the land. |
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Term
| Which of the following types of organism first appeared on Earth during the Cenozoic era? |
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Definition
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Term
The diagram below shows four major divisions of the geologic time scale. At the end of which of the following periods was there a catastrophic disturbance that resulted in mass extinction?
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