Which of the following best describes natural selection?
a. Individuals are striving to find consistency between their ideal self, their real self, and their fear self.
b. Humans are born as blank slates and they are conditioned unknowingly and without free will by their environment.
c. Humans are in a constant struggle to control their unconscious urges for physical gratification and aggressive impulses.
d. Species change little by little with each generation, and over a long period of time they can develop into new species.
D
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A key element in Case's information-processing theory of cognitive development is
a. language development. b. optimal level of skill performance. c. expansion of memory space. d. sociocultural influences. e. attachment.
Numerous studies have shown that adolescents and their parents:
a. share similar beliefs and values b. do not share similar beliefs and values c. argue nonstop d. internalize hostility and do not share what is making them upset.