Evidence for Evolution

What do these structures suggest about the evolution of organisms?

• A common ancestor

• Similar purpose

• One evolved into another

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All fossils discovered are documented in the

• Origin of Species

• Geologic Time Scale

• Biological Evolution

• Fossil Record

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Which of the following represent evidence for evolutionary change?

• The fossil record

• Written observations from individuals in prehistoric periods

• Genetic information (DNA)

• Anatomical similarities

• Natural selection

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The fossils found deeper in the Earth are...

• younger

• older

• harder

• from dinosaurs

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The sudden disappearance of a type of fossil in the fossil record is evidence of...

• adaptation

• carbonization

• extinction

• camouflage

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What does the fossil record suggest?

• Changes have occurred to features of living organisms.

• Features of deceased organisms change after death.

• Feature of living organisms cannot be observed.

• Features of living organisms have remained constant.

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What adaptation would help a Leaf-tailed Gecko both catch its prey and avoid its predators?

• Adaptation

• Migration

• Camouflage

• Hibernation

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By looking at the genes of some animals we can determine which living species are most closely related to each other. This also reveals which species most recently diverged from their common ancestor.

Based on the partial gene segments shown, which pair of animals are genetically most closely related and therefore most recently diverged from their common ancestor?

• Chimpanzee and Mouse

• Rat and Mouse

• Rat and Chimpanzee

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Which rock layer contains the newest fossils?

• F

• E

• B

• C

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Researchers discovered that the legs of birds are homologous to the feet of reptiles. Which claim is BEST supported by this fact?

• Birds do not require legs

• Birds and reptiles have a common ancestor

• They randomly developed the same structures

• Selection pressures have acted on birds, but not on reptiles

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