A Change in the Body of Young Boys Such as the Appearance

question 313

Multiple Choice

A change in the body of young boys such as the appearance and growth of body hair is considered __________.

• A) a secondary sex characteristic
• B) a primary sex characteristic
• C) the final stage of puberty
• D) a sign of postconventional morality

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Definitions:

Twins Study

A research method used in genetic and psychological studies to assess the relative impact of hereditary and environmental factors by comparing identical and fraternal twins.

Periodical

A publication, such as a magazine, journal, or newspaper, that is published at regular intervals over an indefinite period.

Nurture

The influence of environmental factors on one's behavior, development, and personality.

Identical Twins

Genetically identical siblings that result from the division of a single fertilized egg.