The Most Likely Cause of the Extinctions of Many Large

question 50

Multiple Choice

The most likely cause of the extinctions of many large mammals in North America in the last 14,000 years is

• A) rapid climate change associated with glaciation.
• B) overhunting by humans.
• C) the formation of land bridges to neighboring continents that allowed many new species of competitors and predators to invade these regions.
• D) massive volcanism that caused destruction of the food supply for these mammals.
• E) pathogens introduced by humans.

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Definitions:

ERG Theory

A theory proposed by Clayton Alderfer that categorizes human needs into three groups: Existence, Relatedness, and Growth, modifying Maslow's hierarchy of needs.

Maslow's Needs

A theory of psychological development outlined by Abraham Maslow that proposes a hierarchy of human needs, from basic physiological needs to self-actualization.

Human Motivation

The internal drive that propels individuals to take action, achieve goals, and satisfy needs and desires.

Need for Achievement

A psychological trait that drives individuals to pursue and attain challenging objectives.