Evidence for Evolution

When comparing the DNA of two different organisms, the more differences in the DNA base pairs the more-

• Closely related they are.

• Distantly related they are.

• It doesn't prove anything.

• They look alike.

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The moth wing and the bat wing are example of structures.

(a)  

• Analogous
• Homologous
• Vestigial
• Fossil

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NGSS.HS-LS4-1

Which of the pictures above would be examples of homologous structures? (pick 2)

• 1

• 2

• 3

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What type of evidence is shown with the diagram above?

• Molecular

• Anatomical

• Embryological

• Fossil

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The similarities of bone structure in the diagram provide evidence of what?

• The organisms probably use there forelimbs for the same thing.

• The organisms evolved from a common ancestor.

• The organisms have the same DNA.

• All vertebrate species have identical forelimbs.

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NGSS.HS-LS4-1

Match the following

• Same structure different function

• Biochemical Evidence

• Comparing embryological development of different species

• Homologous Structure

• Structures in the body of an organism that no longer work.

• Analogous Structure

• Comparing DNA and amino acid sequences of different species

• Comparative Embryology

• Same function different structure

• Vestigial Structures

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NGSS.HS-LS4-1

What conclusions can be made based on this table shown?

• the American black bear and the giant panda are most closely related

• the giant panda and the red panda are most closely related

• the red panda and the racoon are the most closely related

• the giant panda and the racoon are most closely related

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How do fossils provide evidence that evolution has happened on Earth?

• Fossils show how the sizes of certain animals has changed drastically over millions of years
• Fossils show that some species have gone extinct
• Fossils show how life forms present today are different than those from the past
• Different sedimentary rock layers provide evidence for how the environment has changed over time

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NGSS.HS-LS4-1

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What number is the common ancestor of C and D

• 1

• 2

• 3

• 4

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_________________ show clear changes in an organism over time, the environment organisms lived in, the time period the organism lived in, and where the organism lived.

• DNA

• Vestigial structures

• Fossils

• Homologous structures

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