A compound that contains both carbon and hydrogen is ____
a. a salt
b. always an acid
c. non-biological
d. organic
e. inorganic
ANSWER: d
Biology & Microbiology
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Glycogen is a polysaccharide used for energy storage by ____
a. animals b. plants c. protists d. bacteria e. archaea
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Which portion of the nephron is not permeable to water?
a. Bowman’s capsule b. proximal tubule c. descending limb of loop of Henle d. ascending limb of loop of Henle e. collecting ducts
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