AnswersTPS EdX BiologyBiological Evidence and the Fossil Record

Biological Evidence and the Fossil Record — Test Answers

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21
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When were Earth’s landmasses first recognizable as the continents we know today?

A
180 million years ago
B
10 million years ago
C
135 million years ago
D
300 million years ago
22
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In a cladogram, when does a group of organisms branch off?

A
when it becomes large enough
B
when it is discovered
C
when a new trait evolves
D
when an ancestor becomes extinct
23

In Wegener's view, what caused mountain ranges to form?

A
continents colliding
B
volcanoes
C
Earth shrinking
D
meteorite impacts
24

What could a scientist do to determine what era the Eocene period belongs to on the geologic time scale?

A
research events that happened during the Paleozoic era
B
study information related to the Cenozoic era
C
view the timing of events in the Mesozoic era
D
learn what happened during Precambrian time
25

According to the law of superposition, which statement is supported by the diagram?

A
Layer B is younger than layer D.
B
Layer C is older than layer A.
C
Layer D is the youngest layer.
D
Layer C is the oldest layer.

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