What would cause a genetic female mammal to develop an anatomical appearance resembling a male's?
a. a lack of estradiol
b. moderate levels of estradiol during an early stage of development
c. a high level of testosterone during an early stage of development
d. a high level of testosterone during the late part of puberty
c
Psychology
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Which brain structure contains the suprachiasmatic nuclei that control circadian
rhythms? a. Hypothalamus b. Hippocampus c. Corpus callosum d. Cerebellum e. Thalamus
Psychology
An early theory of hunger proposed by Cannon and Washburn asserted that people are
motivated to eat when the a. hypothalamus signals the nervous system that blood-sugar levels are low. b. temporary fat reservoirs are low. c. set points for food are triggered by signals from the brain. d. stomachs are empty. e. blood-sugar levels are high.
Psychology