The event called the Cambrian Explosion resulted in an abrupt increase in
A)volcanic activity.
B)diversity of major animal groups.
C)algal diversity.
D)the number and size of glaciers.
E)rate of continental drift.

Question

Quizplus · Accepted Answer

The Cambrian Explosion refers to a period about 541 million years ago where there was a rapid increase in the diversity of major animal groups, including the first appearance of many familiar forms of life such as arthropods, mollusks, and chordates. The other choices are not related to this event.

The Event Called the Cambrian Explosion Resulted in an Abrupt