Most psychoactive drugs produce their effects primarily by acting on:
a. hormones.
b. the hypothalamus.
c. neurotransmitters.
d. the autonomic nervous system.
C
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Spencer's The Principles of Psychology became the most influential book ever written in psychology
a. True b. False
For most people, both fluid and crystallized intelligence increase with age
Indicate whether this statement is true or false.
Give examples of structural and behavioral characteristics that might give selective advantages to an organism.
What will be an ideal response?
Which statement is true of the sex chromosomes?
A. The Y chromosome controls the development of the male sex glands. B. The Y chromosome contains the blueprints for male fetus development. C. The Y chromosome contains the blueprints for the female fetus. D. The mother donates her Y chromosome to form a female fetus.