What is the main advantage of an experiment over a correlational study?
a. The researcher knows the participants are representative of the population.
b. The researcher is better able to draw conclusions about cause and effect.
c. The researcher is able to study phenomena within their natural context.
d. The researcher can legitimately use a much smaller sample size.
B
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Juan eats a meal full of sugar and starches. In response, his pancreas releases insulin into the bloodstream which stimulates his cells to draw more glucose from his blood. This decreases the level of glucose in Juan's body and, eventually, the pancreas reduces its insulin secretion. Juan's endocrine system is engaging in which process?
a. plasticity b. homeostasis c. aphasia d. concordance e. lateralization
Pete has played lead guitar in a rock band for years
He often would turn the volume on his guitar way up and spend a great deal of time in front of the speakers during the shows. His resulting hearing loss over the past few years is most likely the result of A) conductive deafness. B) nerve deafness. C) noise-induced hearing loss. D) tinnitus.
From a sociobiological perspective, one fitness advantage women have over men is
(a) a woman is biologically guaranteed that her children will carry her genes (b) over an average lifetime, more sperm than eggs go to waste (c) women cannot further reproduce during the 9 months they are pregnant, but men have no such biological "time-out" (d) generally more men than women are married to someone of higher economic or social status
_________ increases by only 10 percent during middle childhood and adolescence
A) White matter B) The weight of the brain C) Gray matter D) The number of synapses