The process of crossing-over
A) increases the potential for healthy sperm to reach the site of fertilization.
B) ensures variability among the genetic codes of siblings.
C) ensures that characteristics will be transmitted from parents to offspring.
D) decreases the likelihood of mutations, chromosomal abnormalities, and birth defects.
B) ensures variability among the genetic codes of siblings.
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In adulthood, testosterone appears to have activating effects. Which of the following describes these activating effects?
A) Adults' level of testosterone affects their preference for partners of the same or the other sex. B) Adults' level of testosterone affects the intensity of sexual desire and the direction of that desire toward partners of the same or the other sex. C) One's adolescent levels of testosterone affect the probability of developing a homosexual sexual orientation. D) Adults' level of testosterone affects the intensity of their sexual desire but not the direction of that desire toward partners of the same or the other sex.
Which of the following theorists is associated with Gestalt psychology?
a. Ivan Pavlov b. B.F. Skinner c. Max Wertheimer d. John Watson