One hypothesis suggests that the Cambrian explosion was caused by the rise of predator-prey relationships. This hypothesis is best supported by an increased incidence of which of the following fossil traces?
A) worm burrows
B) larger animals
C) organic material
D) protective shells

Question

Quizplus · Accepted Answer

The rise of predator-prey relationships during the Cambrian explosion is supported by an increased incidence of protective shells in the fossil record. These shells are interpreted as an evolutionary response to predation, providing physical defense mechanisms for organisms against their predators.

One Hypothesis Suggests That the Cambrian Explosion Was Caused by the Rise