The adrenal medulla secretes epinephrine in response to stress or exercise
Indicate whether the statement is true or false
TRUE
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In response to a significant drop in blood pressure, ____ is produced, which quickly raises blood pressure by
constricting many arterioles.
a. atrial natriuretic factor b. renin c. aldosterone d. antidiuretic hormone e. angiotensin
The chemoreceptors called papillae are ________
a. ciliated endings of olfactory receptors b. touch receptors located on the skin c. taste buds on the tongue d. specialized for detecting pheromones
Proteolytic processing of eukaryotic proteins involves:a
removal of a portion of the polypeptide chain from an inactive precursor of the protein. b. the addition of one or more functional groups to a precursor protein. c. the removal of one or more functional groups from a precursor protein. d. removal of histones. e. removing the cap and tail of a newly synthesized protein
The event called the Cambrian Explosion resulted in an abrupt increase in
A. volcanic activity. B. rate of continental drift. C. algal diversity. D. diversity of major animal groups. E. the number and size of glaciers.