Evolution and Classification

Similar organisms that are NOT related are an example of

• natural election

• convergent evolution

• divergent evolution

Two groups of organisms with similar characteristics may share

• a common ancestor

• an evolutionary history

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NGSS.MS-LS4-2

Of the following, the best definition of evolution is

• a rapid change of species over time

• an adaptation of an organism to its environment

• a gradual change in a species over time

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Species with similar evolutionary histories are classified more

(a)  

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To determine whether two organisms are related, scientists may compare the _______ _______ of their cells. (2 words)

(a)  

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NGSS.MS-LS4-2

_______ ________ is the process by which individuals that are better adapted to their environment are more likely to survive and reproduce. (2 words)

(a)  

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A ______ ____ _________ is usually a homologous structure that is shared by all organisms in a group. (3 words)

(a)  

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The theory of evolution was proposed by _______ ______. (first and last name)

(a)  

If two species have very similar structures, they may have evolved from a ______ ________. (2 words)

(a)  

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NGSS.MS-LS4-2

NGSS.MS-LS4-1

One thing a branching tree diagram shows is the (a)   in which specific characteristics may have evolved. (1 word)

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