Recall That the Introduction to Chapter 11 (Prosocial Behavior) Began

question 61

Multiple Choice

Recall that the introduction to Chapter 11 (Prosocial Behavior) began with a description of several of the citizen-heroes of September 11, 2001-for example William Wik, who refused to flee to personal safety because there were still people to be rescued. He died when the tower collapsed. Wik was willing to sacrifice his own life to save others, and his behavior could thus best be described as

• A) altruistic.
• B) prosocial.
• C) evolutionarily adaptive.
• D) an example of kin selection.

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Definitions:

Action Potential

A sudden change in electrical charge across a neuron's membrane, allowing it to transmit a nerve impulse.

Neurons

Specialized cells within the nervous system that transmit information to other nerve cells, muscle, or gland cells.

Axon Membrane

The lipid bilayer covering the axon of a neuron that facilitates the conduction of electrical impulses.

Positive Ions

Entities such as atoms or molecules that possess a net positive charge due to the loss of one or more electrons.