AnswersWV-Earth and Space Science A-CRMiddle and Recent Earth History

Middle and Recent Earth History — Unit test Answers

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21
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Plate tectonics may affect organic evolution because movement of plates may cause a change in ____.

A
natural selection
B
the environment
C
Pangaea
D
the geologic time scale
22
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What is the value of a transitional fossil?

A
Transitional forms show the evolutionary steps between species.
B
Transitional forms are analogous fossils.
C
Transitional forms discredit the theory of evolution.
D
Transitional forms are proof of punctuated equilibrium in evolution.
23

____ on the geologic time scale are marked by major, striking, and worldwide changes in the type of fossils present.

A
Eras
B
Periods
C
Epochs
D
all of the above
24

Early land animals had gills as well as lungs.

A
T
B
F
25

Significant plate tectonic changes occurred on Earth during the Mesozoic Era.

A
T
B
F

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Middle and Recent Earth History — Unit test…