#Question id: 5025
#Unit 11. Evolution and Behavior
Which of these genetic processes may be most helpful in accounting for the Cambrian explosion?
#Question id: 5026
#Unit 11. Evolution and Behavior
Whatever its ultimate cause(s), the Cambrian explosion is a prime example of
#Question id: 5027
#Unit 11. Evolution and Behavior
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.
#Question id: 5028
#Unit 11. Evolution and Behavior
What is the probable sequence in which the following clades of animals originated, from earliest to most recent?
1. tetrapods
2. vertebrates
3. deuterostomes
4. amniotes
5. bilaterians
#Question id: 5029
#Unit 11. Evolution and Behavior
Which of the following was the least likely factor causing the Cambrian explosion?
#Question id: 5030
#Unit 11. Evolution and Behavior
There is evidence that ray-finned fishes originally evolved