Question

Name and briefly describe three theories to explain the rapid diversification of animals in the Cambrian explosion 542 million years ago.

Answer 1

Cambrian explosion taken place before 542 million years ago and rapid emergence of diverse animals was observed. There a no. Of theory for rapid diversification-

A. Evolution of hard parts or skeleton-

B. Rise in oxygen content

C. Sexual reproduction

Evolution of skeleton- hard skeletons provide support against predator and major diversification force.

Oxygen content risen also was important in diversification and sexual reproduction was also an important factor.