A young boy develops facial and chest hair, pubic hair, and experiences a deepening of his voice. This happens because puberty is stimulating the development of his __________
a) primary sex characteristics.
b) secondary sex characteristics.
c) male attachment characteristics.
d) reproductive signaling characteristics.
b
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A researcher notes that aggression in humans is similar in many ways to aggression in animals (e.g., gorillas, lions, etc.), and hypothesizes that an instinct for aggressive behavior may have been acquired through evolution
Which theoretical view does this hypothesis illustrate? A) information-processing B) ethology C) socioculturalism D) classical conditioning
A dynamic systems theorist who studies how infants learn to walk is likely to
A) focus on biological influences. B) highlight only social influences. C) study a wide variety of both biological and environmental influences. D) isolate the influence of the mesosystem.