The intensity of the reflected light that reaches our eyes is known as
A) hue.
B) contrast.
C) brightness.
D) saturation.
Answer: C
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Studies have indicated that aerobic exercise promotes psychological well-being, which is MOST likely due to a(n):
A) decrease in the body's fat reserves. B) increase in the body's serotonin production. C) decrease in the body's endogenous opioid production. D) increase in the availability of oxygen to body tissues.
Carlo created a new study technique. He got 60 students to test out his new technique
Half of them were taught the new technique, while the other half were not. All of the students were then given a psychology exam. Students who learned the technique were in the _____ group, whereas students who did not learn the technique were part of the _____ group. Fill in the blank with correct word
It is always appropriate to use a directional alternative hypothesis
Indicate whether the statement is true or false
Which of the following is a possible effect of sex hormones?
a. triggering physical changes at puberty b. regulating daily biological rhythms and sleep c. triggering responses to drugs, such as caffeine and nicotine d. causing increased emotion in women prior to menstruation