Evolution Quick Check!

What is the overarching idea of evolution?

• All life descended from a common ancestor

• Humans came from apes

• Animals adapt based on needs

• Only the strongest and most intelligent organisms survive

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Which of the following are lines of evidence for the theory of evolution? (There LOTS of answers, choose ALL that apply!)

• comparative anatomy

• study of DNA

• fossil evidence

• embryology

• molecular biology

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A vestigal structure is.....

• A structure that is a remnant from our ancestors that provides no function.

• A structure that is similar in different organism, but may have a different function

• A structure that is very different in different organisms, but has the same function

• A structure that is essential for evolution to occur

Which three of the following are examples of vestigal structures?

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A homologous structure is.....

• A structure that is a remnant from our ancestors that provides no function.

• A structure that is similar in different organism, but may have a different function

• A structure that is very different in different organisms, but has the same function

• A structure that is essential for evolution to occur

Which of the following two (2) diagrams show only homologous structures?

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An analogous structure is.....

• A structure that is a remnant from our ancestors that provides no function.

• A structure that is similar in different organism, but may have a different function

• A structure that is very different in different organisms, but has the same function

• A structure that is essential for evolution to occur

Which three (3) of the following diagrams show at least one analogous structure?

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Darwin believed in the idea of Common Descent, but couldn't quite explain how random changes created such complex, and adapted organisms until.....

• he saw our common ancestor on the Galapagos Islands.

• he saw that there were so many different types of finch.

• he realized that animals adapted to their environments as needed.

• he formulated the idea of natural selection.

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What did Darwin mean?

• That large, intelligent organisms are less likely to survive long enough to reproduce

• That organisms change according to the needs of the environment

• That organisms that are adapted to their environment have a better change of surviving long enough to reproduce

• That evolution is a secret

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