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

question 30

Multiple Choice

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

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Definitions:

Alarm Stage

The first phase in the stress response, in which the body prepares to fight or flee from a perceived threat.

Hardy Personality

A trait characterized by resilience, the ability to cope with stress in a healthy way, and the tendency to view life challenges as opportunities for growth.

General Adaptation Syndrome

An explanation revealing how the body deals with stress over time through a three-stage process: the initial alarm phase, the resistance phase, and finally, the exhaustion phase.

Irrational Beliefs

Baseless or unreasonable thoughts that often lead to negative emotional outcomes or unproductive behaviors.