In a controlled experiment, the group subjected to a change in the independent variable is called the __________ group.
A. independent
B. experimental
C. dependent
D. control
Answer: B
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In addition to its role in motor behavior, acetylcholine has been suggested to be involved in attention, arousal, learning, and memory, and its degeneration related to Alzheimer's disease. Given what you have learned about the brain, in what structure would you expect to find a high percentage of acetylcholine receptors?
a. pons b. hypothalamus c. hippocampus d. thalamus
Which of the following Erikson stages corresponds to Freud's anal stage?
A. trust vs. mistrust B. autonomy vs. shame and doubt C. initiative vs. guilt D. industry vs. inferiority
Dee says that she has developed special sunglasses to enable people to see light with wavelengths of 550–700 nanometers. Would these be useful for humans??
a. ?No—these frequencies are already visible to humans. b. ?Yes—but only for seeing very faint lights. c. ?No—unless one is looking at very bright lights. d. ?Yes—these frequencies are normally outside of human range.
According to the Tanner Genitalia Development Scale, girls experience __________ in stage 4
a. breast buds b. pubic hair c. menarche d. underarm hair