Which of the following statements is true?
A) Action potentials can occur in a rapid-fire sort of process, with no break between them.
B) Action potentials either fire completely or they do not fire at all.
C) Action potentials travel from the axon terminal to the dendrite.
D) Action potentials will jump from node to node only on demyelinated axons.
Answer: B
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Many studies of the late twentieth and early-twenty-first century reported __________ in midlife.
a. a decrease of masculine traits in women b. an increase of masculine traits in men c. an increase of feminine traits in women d. increased androgyny in men and women
Kwashiorkor
A) is common in regions where children get just enough calories from starchy foods but little protein. B) usually appears in the first year of life when a baby's mother is too malnourished to produce enough breast milk. C) affects 27 percent of the world's children before the age of 5. D) affects an estimated 21 percent of U.S. children.
Which of these links between receptors and cortical receiving area is not correct?
A. Chemoreceptors - primary olfactory cortex B. Nociceptors - primary somatosensory cortex C. Chemoreceptors - striate cortex D. Mechanoreceptors - Heschl's gyrus
Which of the following was a finding from several research studies of adolescents who watched sexually explicit TV shows?
A. There was a link between the amount of time adolescents watched sexually explicit TV and the initiation of sexual intercourse. B. There was a link between the amount of time adolescents watched sexually explicit TV and initiation of dating. C. Adolescents who watched "sexy" shows were less likely to endorse sexual stereotypes than adolescents who did not watch these shows. D. None of these was a finding.