Describe the various effects of pheromones in the modulation of the rodent estrous cycle
What will be an ideal response?
Answer: The rodent estrous cycle is four days in length and involves the secretion of estradiol followed by progesterone. Exposure of a female mouse to the odor of other female mice can slow their estrous cycles (Lee-Boot effect), while exposure to a male mouse can restart the cycle (Whitten effect). Moreover, the urine from a male mouse can speed up the onset of puberty (Vandenbergh effect) or can cause a pregnant female to abort a fetus fathered by another male mouse (Bruce effect). These effects require an intact vomeronasal organ.
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Which the following statements best describes the nature–nurture debate?
a. Most characteristics develop solely from nature or nurture, but not both. b. Most characteristics develop from a combination of nature and nurture. c. Most characteristics develop from only nature. d. Most characteristics develop from only nurture.
Constrictions that divide the myelin sheath into segments are called _______________
a. dendrites b. glia c. nodes d. sclerosis
Most women have a Grafenberg spot
a. True b. False
Learning disorders are characterized by:
A. inadequate development of specific academic skills. B. social deficits and stereotyped behavior. C. abnormal functioning and loss of previously acquired skills. D. excessive inattention, impulsiveness, and hyperactivity.