Evidence of Evolution of Fossil Record

If modern organisms have a lot of homologous structures, what inference might paleontologists make about those organisms?

• They are reptiles

• The organisms have a common ancestor

• One organism evolved from the other.

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Which is not evidence for evolution?

• many animals have homologous structures due to common ancestry

• We can observe changes in life forms by observing the fossil record

• Many animals have vestigial structures from an ancestor

• All of these are evidence for evolution

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What is a structure that is similar across species?

• vestigial

• adaptation

• homologous

• variation

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Which of the following statements ​best​ describes how the fossil record shows evidence for evolution?

• The fossil record shows the remains or traces of ancient life forms

• Fossils exist all over the world

• When an animal dies, its body can be covered up and preserved by layers of rock and earth, forming a fossil

• By studying, dating, and analyzing fossils, we can learn how living creatures changed over time

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Which piece of evidence could be used to show that mammalodons and modern whales are directly related to each other and share a common ancestor?

• They both eat small sea creatures

• They share similar anatomical features, such as unused hip bones.

• They both produce one baby at a time.

• Their social behavior includes swiming in groups.

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Which statement does this dolphin embryo structure provide evidence for?

• Dolphins are more closely related to other mammals with hind legs than to fish.

• Dolphins are more closely related to fish than to other mammals with hind legs.

• Dolphins do not share an evolutionary relationship with other mammals.

• Dolphins do not share an evolutionary relationship with fish.

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A scientist compares a fossil to a very similar living organism. The comparison gives the scientist information about what the fossil organism likely ate and the kind of environment it lived in. Which scientific concept is the scientist using?

• absolute dating

• relative dating

• the law of superposition

• the principle of uniformitarianism

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Which piece of evidence is ​NOT​ studied to prove how species evolved over time?

• Anatomy

• Fossil record

• Embryology

• Hair color

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Based on the images, what might cause a scientist to think these are related?

• They are about the same size.

• They eat the same kind of food.

• They live in the same types of habitats.

• They have very similar body structures.

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Which of the following best explains how the fossil record supports the theory of evolution?

• Fossils show that all species appeared at the same time

• Fossils demonstrate that species have changed over time

• Fossils indicate that species have always remained the same

• Fossils prove that evolution is a myth

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