The sex that is more selective in choosing mates tends also to
A) be more aggressive in competition with other members of the same sex.
B) be more focused on social status and hierarchy.
C) try harder to attract potential mates.
D) invest more heavily in the offspring.
Answer: D
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Worldwide,
A) the shortest children can be found in hot, tropical regions. B) body size always reflects evolutionary adaptations, regardless of environment. C) growth norms can be applied universally to children age 8 and older. D) a 9-inch gap exists between the smallest and the largest 8-year-olds.
Mindy and Mandy are dizygotic twins. Therefore, they
a. came from two separate eggs. c. have no shared genes. b. have the same genes. d. cannot be used in a twin study.
Graph the time derivatives of these functions.
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Besides schizophrenia, the DSM-5 classifies a range of psychological disorders within the schizophrenia spectrum of disorders. They include which of the following?
a. conversion disorder c. major affective disorder b. hallucination disorder d. schizoaffective disorder