The fundamental time unit representing a major change in life forms is the
A) eon subdivision.
B) era subdivision.
C) period subdivision.
D) epoch subdivision.
Correct Answer:
Verified
Q74: Life forms in the Precambrian include
A)trilobites,brachiopods and
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Q82: The Devonian period is most noted for
Q83: The formation of the supercontinent of Pangaea
A)resulted
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