Species of Australopithecus Began to Appear in the Fossil Record

question 4

Multiple Choice

Species of Australopithecus began to appear in the fossil record around:

• A) 1.2 million years ago
• B) 2.2 million years ago
• C) 3.2 million years ago
• D) 4.2 million years ago

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Definitions:

Underlying Circuit

The fundamental electrical or neurobiological pathways that support specific functions or behaviors.

Two-factor Theory

A psychological theory positing that emotional experiences arise from a combination of a state of physiological arousal and a cognitive label identifying the reason for the arousal.

James-Lange Theory

A theory of emotion proposing that emotions result from our interpretations of our bodily reactions to stimuli.

Cannon-Bard Theory

A theory of emotion that proposes emotions and physiological reactions occur simultaneously.