The male produces sperm in the ________, two glands located in the ________
A) penis; scrotum
B) scrotum; penis
C) testes; penis
D) testes; scrotum
Answer: D
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How many separate groups of participants would be needed for an independent-measures, two-factor study with 3 levels of factor A and 4 levels of factor B?
a. 3 c. 7 b. 4 d. 12
The percentage of people over the age of sixty-five that fall each year is
A. ten B. twenty C. thirty D. fifty
The tendency of individuals who know they are under observation to alter their natural behavior is termed
a. participant reactivity. c. observer reactivity. b. observer bias. d. participant bias.
Given what you know about the processing of pain, what is the best explanation for the process by which cultural experiences and expectations can reduce the feeling of pain?
A. Pain receptors respond less to the stimulus, reducing pain. B. Endorphin release is lessened, decreasing pain perception. C. The insula and anterior cingulate cortex reduce the negative emotional experience of the pain. D. Myelinated pain fibers become less sensitive to sharp pain, reducing response in the thalamus.