The Most Important Event During the Cambrian Period Was the

question 92

Multiple Choice

The most important event during the Cambrian period was the

• A)emergence of the fishes.
• B)ability of organisms to form an outer skeleton.
• C)emergence of the trilobite.
• D)ability of organisms to develop lungs.

---

Definitions:

Two-factor Theory

A psychological theory that explains emotions as a result of physiological arousal and cognitive labeling of the cause of the arousal.

Adaptation-level Theory

A psychological theory suggesting that individuals base their judgments of new stimuli on their past experiences and the level of adaptation they have achieved.

James-Lange Theory

A theory suggesting that emotions result from the experience of physiological reactions in the body.

Emotional Preference

An individual's inclination towards certain feelings or emotional states over others, often influencing their choices and behavior.