Assignment task: Why is it called the Cambrian Explosion? Select all that apply:
a. Because Scientists like to name old stuff fancy names
b. Because the Sea "Exploded" with magmaic gasses and acid air.
c. Because scientists couldn't officially agree on what it should be called, so instead of calling it the Cambrian Period, they called it the Cambrian Explosion
d. It is called the Cambrian Explosion because of the limited short time when the diversity appears
e. It is the time when most of the major groups of animals first appear in the fossil record