Fossil evidence indicates that the following events occurred in ...

[hummingbird]

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

[geoffrey]

Best answer would be C.

[hummingbird]

Great help lol Thanks