#Question id: 5022
#Unit 11. Evolution and Behavior
Almost all of the major animal body plans seen today appeared in the fossil record over 500 million years ago at the beginning of the
#Question id: 5023
#Unit 11. Evolution and Behavior
The origin of the craniates occurred at roughly the same time as the
#Question id: 5024
#Unit 11. Evolution and Behavior
Which statement is most consistent with the hypothesis that the Cambrian explosion was caused by the rise of predator-prey relationships?
#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.