Which of the following is true with regard to homosexuality?
A. It is found in only certain societies.
B. It is more frequent among males than among females.
C. Outside the Western world, it tends to be the predominant form of sexual behavior for adults.
D. Attitudes toward it vary little across cultures.
B. It is more frequent among males than among females.
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Parasympathetic effects are localized and short-lived because
A) muscarinic receptors are deactivated by norepinephrine. B) acetylcholine is inactivated at the synapse by acetylcholinesterase. C) norepinephrine hyperpolarizes the postganglionic membrane. D) norepinephrine is inactivated at the synapse by monoamine oxidase. E) epinephrine blocks the muscarinic receptors.
To compensate for significant blood loss, the autonomic nervous system triggers
A. vasoconstriction and an increase in heart rate. B. vasoconstriction and a decrease in heart rate. C. vasodilation and an increase in heart rate. D. vasodilation and a decrease in heart rate.
Which of the following muscles is involved in swallowing?
A. Palatopharyngeus B. Temporalis C. Masseter D. Vocalis E. Sternocleidomastoid
The weight of the body is supported by the
A) distal metacarpals. B) proximal metatarsals. C) hallux. D) calcaneus. E) distal ends of the metatarsals and the calcaneus.