Neurogenesis in the adult hippocampus is stimulated by
a. the experience of behavioral depression.
b. a learning experience.
c. the experience of prolonged stress.
d. the ingestion of drugs that induce stress.
e. the blockade of glutamate receptors.
Answer: b. a learning experience.
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The Centers for Disease Control are concerned with prematurity and low birth weight because these factors ______.
A. are easily controlled with education B. are easily influenced with medical intervention C. account for about a third of mortality cases in infancy D. present the number one infancy issue worldwide
Papaverine and prostaglandin, which are vasodilating drugs used in the treatment of erectile dysfunction, are delivered to the patient
A. in a capsule taken orally. B. as a dietary supplement. C. by injection directly into the penis. D. via a skin patch.
Melatonin, a hormone that regulates sleep and wakefulness, is produced by the _____ gland
a) pineal b) pituitary c) parathyroid d) thymus
According to ethologists, some behaviors can only be learned
a. when the behavior is reinforced and opposing behaviors are punished. b. through observational learning. c. during a critical period when the organism is biologically programmed to learn that behavior. d. when the conflict between biological drives and society's standards is resolved.