Fossil Evidence Indicates That the Following Events Occurred in What

question 28

Multiple Choice

Fossil evidence indicates that the following events occurred in what sequence, from earliest to most recent?
1) Protostomes invade terrestrial environments.
2) Cambrian explosion occurs.
3) Deuterostomes invade terrestrial environments.
4) Vertebrates become top predators in the seas.

• A) 2 → 4 → 3 → 1
• B) 2 → 1 → 4 → 3
• C) 2 → 4 → 1 → 3
• D) 2 → 3 → 1 → 4
• E) 2 → 1 → 3 → 4

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