Populations of different species comprise a(n) ____
a. populations
b. biosphere
c. ecosystem
d. community
e. evolution
ANSWER: d
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One result of the bottleneck affect can be
a. homozygosity. b. heterozygosity. c. increased genetic diversity. d. disruptive selection. e. the founder effect
Archaeal sulfate reducers use elemental sulfur as an electron acceptor.
Answer the following statement true (T) or false (F)
Aspirin and ibuprofen both _____
A) inhibit the synthesis of prostaglandins B) inhibit the release of nitric oxide, a potent vasodilator C) activate the paracrine signaling pathways that form blood clots D) stimulate vasoconstriction in the kidneys
Monocots typically have leaves with ________ veins and flowers with ________ parts per whorl.
A. parallel; three B. parallel; four to five C. netlike; four to five D. netlike; six E. netlike; three