Evidence for Evolution

Structures with the same parts have different functions; suggests that organisms share a common ancestry

• vestigial structures
• homologous structures
• adaptive radiation
• fossil

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NGSS.MS-LS4-2

Study of embryos of various organisms to show a common ancestor because of similarities in development

• natural selection
• embryology
• speciation
• evolution

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NGSS.MS-LS4-3

What does Darwin's theory of evolution suggest?

• species change over time
• extinct species are not related to living species
• different species can interbreed
• animals that look alike are most closely related

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NGSS.MS-LS4-2

NGSS.MS-LS4-4

Some organisms that share a common ancestor have features that have different functions, but similar structures.  These are known as

• vestigial structures
• analogous structures
• homologous structures
• fossil structures

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NGSS.MS-LS4-2

Which is not evidence for evolution?

• many animals have homologous structures due to common ancestry
• Many animals have vestigial structures from an ancestor
• We can observe changes in life forms by observing the fossil record
• All of these are evidence for evolution

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NGSS.MS-LS4-2

NGSS.MS-LS4-1

What is a structure that is similar across species?

• vestigial
• homologous
• adaptaion
• variation

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NGSS.MS-LS4-2

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.MS-LS4-2

NGSS.MS-LS4-1

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

• They are reptiles
• One organism evolved from the other.
• The organisms have a common ancestor

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NGSS.MS-LS4-2

The diagram illustrates an embryonic stage of two organisms.

Which of the following can be determined by observing the embryos shown in the diagram

• The organisms share a common ancestry.
• The organisms belong to the same genus.
• The organisms are native to the same geographic areas.
• The organisms will grow into anatomically similar adults.

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NGSS.MS-LS4-3

According to evolutionary theory, similar DNA would mean a common

• Ancestor

• Environment

• Interest

• Residency

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NGSS.MS-LS4-2