What is the name for compounds that are applied to the vagina or rectum to protect against STIs and work by providing a physical barrier to keep STIs from reaching certain cells?
a. Condoms
b. Microbicides
c. Antiretrovirals
d. Lactobacillus
b
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Which of the following suggests that pitch detection is coded by combining frequencies of neurons firing in alternate succession?
a. volley principle b. place theory c. opponent-process theory d. frequency theory e. gate-control theory
Terrance went to the dentist and was given some Novocain. This prevented him from feeling pain because the drug ____.
A. attached to sodium channels letting in sodium and stopping the action potential from sending a pain message B. attached to potassium channels letting in potassium and stopping the action potential from sending a pain message C. attached to potassium channels blocking potassium from entering and stopping the action potential from sending a pain message D. attached to sodium channels blocking sodium from entering and stopping the action potential from sending a pain message
Which of the following statements is TRUE?
a) Night terrors are a rare disorder, affecting only 3% of kids and around 1% of adults. b) Nightmares, but not night terrors, suggest some psychological problems. c) Night terrors, but not nightmares, suggest some psychological problems. d) Both nightmares and night terrors suggest psychological problems.
When all lines of our thinking focus on one correct answer, we have an example of
a) focused thinking. b) creative thinking. c) divergent thinking. d) convergent thinking.