When a nitrogenous base is bonded to a pentose sugar and a phosphate, a ________ is formed.
Fill in the blank(s) with the appropriate word(s).
nucleotide
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Bacteria within the large intestine are called
A. indigenous macrobiota. B. indigenous microbiota. C. exogenous macrobiota. D. exogenous microbiota.
Taste
a. discrimination depends on the ratio of stimulation of the taste buds, which have a variation in relative sensitivity. b. buds are stimulated only by chemicals in solution. c. discrimination does not go beyond distinguishing between the five primary tastes. d. both (a) and (b) above. e. all of these answers.
A runner produced hypotonic sweat while running a marathon in hot weather. After the race, he drank large volumes of water. As a result of the water intake, his body cells will
A. shrink. B. swell. C. crenate. D. shrivel. E. not change.
Which muscles arise from the skull and often attach to the skin?
A. Extrinsic eye muscles B. Muscles of mastication C. Muscles that move the tongue D. Muscles of facial expression E. Muscles of the pharynx