When motor development of infants is compared among cultures, it is clear that environment has _______________________
a. no effect on gross motor development
b. a large effect on gross motor development
c. a relatively small effect on gross motor development
d. more of an effect on males than on females
Answer: C
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According to an observational study by Gottman where previously unacquainted children were observed in a home setting three times, children who became friends _____________
a. tended to be those who excelled in academics b. tended to be better at exchanging relevant information c. were not as good at resolving conflict than children who didn’t become friends d. were from the same socioeconomic class
Margaret worries about everything all the time. She is very restless and can't sleep at night. She is probably experiencing
a. night phobias. c. generalized anxiety disorder. b. night terrors. d. all of these
Given the characteristics of small-molecule transmitters and neuropeptides, we can conclude that small-molecule transmitters a. are well-suited to roles as neurotransmitters, whereas neuropeptides are well-suited to roles as neuromodulators. b. are well-suited to roles as neuromodulators, whereas neuropeptides are well-suited to roles as neurotransmitters. c. and neuropeptides are equally
well-suited to be either neurotransmitters or neuromodulators. d. and neuropeptides frequently act as neuromodulators and neurohormones, but rarely function as neurotransmitters.
Semen normally contains secretions from the seminal vesicles and the prostate gland, and about 50 to 150 million sperm per milliliter. Why is sperm required in such large numbers?
What will be an ideal response?