Why Do African Populations of Humans Have HIGHER Levels of Genetic

question 97

Multiple Choice

Why do African populations of humans have HIGHER levels of genetic variation compared with non-African populations?

• A)Humans originated in Africa, and subsequent migrations resulted in populations seeded by small groups with relatively small amounts of variation.
• B)Because African populations show strong patterns of nonrandom mating.
• C)Numerous migrations to Africa throughout early human history have increased genetic diversity there.
• D)High levels of UV radiation in equatorial regions of the world have increased levels of genetic mutations in Africa.

Understand the role of negative reinforcement in maintaining phobic and avoidance behaviors.

Knowledge of the evolutionarily based fears and their implications in modern phobias.

Awareness of key historical experiments and case studies in the understanding of phobias.

Understand the influence of historical figures and schools of thought on the field of psychology.

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Definitions:

Critical Period

A specific time frame in the early stages of an organism's life during which it is particularly sensitive to certain environmental stimuli that are essential for proper development.

Human Fetus

A developing human from the end of the embryonic period, approximately nine weeks after fertilization, until birth.

Sensitive Period

A critical phase in early development where the individual is particularly receptive to certain stimuli and capable of acquiring specific skills or knowledge.

Second Language

A language learned by a person in addition to their native language, often for the purpose of communication in a multilingual environment.