In what life stage are equal amounts of REM sleep and NREM sleep required?
A. Infancy
B. Older adulthood
C. Early childhood
D. Adolescence
Answer: A
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Probability sampling: ____________: nonprobability sampling: _____________
a. simple random sampling, purposive sampling b. stratified random sampling, cluster sampling c. purposive sampling, haphazard sampling d. purposive sampling, stratified random sampling
Which of the following statements would be considered an example of cultural continuity?
A. Young children learn skills related to food preparation and remain involved in food preparation as adults. B. Children are permitted to express emotions up to age 10; after age 10, they have to hide their feelings. C. Only children who have gone through a rite of passage can enter a certain holy place. D. Mothers and daughters dress in different colors at a funeral to depict social status.
Over 50% of men requesting treatment for sexual disorders have erectile dysfunction
Indicate whether the statement is true or false
Serious diseases are rarely due to dominant alleles because ________.
A. dominant alleles are less likely to be passed on than recessive alleles B. disorders caused by dominant alleles usually do not produce symptoms until age 35 or later C. children who inherit the recessive allele cannot develop the disorder and are likely to live long enough to reproduce D. children who inherit the dominant allele always develop the disorder and seldom live long enough to reproduce