MS-LS4-3 (7th)

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-LS4-2

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-LS4-1

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

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

NGSS.MS-LS4-3

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-LS4-1

NGSS.MS-LS4-2

What is a structure that is similar across species?

• vestigial
• homologous
• adaptaion
• variation

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NGSS.MS-LS4-2

When all of the organisms of a species have died it is called

• evolution
• extinction
• adaptation
• natural selection

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NGSS.MS-LS4-1

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-LS4-1

NGSS.MS-LS4-2

Scientists compare organisms' DNA to support the theory that all species share a common _________________

• separation
• ancestor
• population
• environment

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NGSS.MS-LS4-2

Which IS NOT used as evidence for evolution?

• Fossils

• Natural Selection

• Early Development/Embryos

• Body Structure/Anatomy

• DNA/Proteins

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NGSS.MS-LS4-1

NGSS.MS-LS4-2

NGSS.MS-LS4-3