In covalent bonds, ____
a. atoms share electrons
b. atoms give up electrons
c. atoms accept electrons
d. electrons cannot be shared equally
e. electrons are always shared equally
ANSWER: a
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Chemolithotrophy involves
A) oxidation of organic compounds. B) oxidation of inorganic compounds. C) reduction of organic compounds. D) metabolic autotrophy.
The presence of both male and female reproductive tissue in the same individual is termed ____
a. parthenogenesis b. hermaphroditism c. oviparity d. viviparity e. ovoviparity
Which of the following is true in the pine life cycle?
a. Gametophytes originate within and are dependent upon sporophytes. b. Sporophytes originate within and are dependent upon gametophytes. c. Both gametophytes and sporophytes are totally independent from each other and are equally dominant. d. Gametophytes are free-living and photosynthetic, but are replaced by a dominant sporophyte generation. e. Gametophytes are photosynthetic and partially independent from the sporophytes.
Urinalysis shows that Marianne has large amounts of protein in her urine. The area of the nephron that must be malfunctioning is the ________
A) loop of the nephron B) distal convoluted tubule C) glomerulus D) collecting duct