evolution study guide flashcards for science.

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1
Q

what are two ways a fossil can be formed?

A

traits and generation

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2
Q

how can fossils be used t o study evolution ?

A

we can learn about the past and how they lived .

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3
Q

what do fossils prove about how life has changed on earth ?

A

It is the result of evolution .

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4
Q

which of the following fossils existed in all four time periods

A

A

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5
Q

homologous structure

A

organs or skeletal elements of animals and organisms that, by virtue of their similarity, suggest their connection to a common ancestor.

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6
Q

analogous structure

A

features of different species that are similar in function but not necessarily in structure and which do not derive from a common ancestral feature

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7
Q

trait

A

something that gets passed on by the parents to the kids

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