How many more people could be fed on one pound of grain than one pound of meat?

A. 5 times
B. 10 times
C. 3 times
D. 20 times
E. 2 times


Answer: B

Biology & Microbiology

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The distinction between karyogamy and plasmogamy is:

A. Karyogamy is the fusion of nuclei and plasmogamy is the fusion of the cytoplasm. B. Karyogamy is the fusion of cytoplasm and plasmogamy is the fusion of nuclei. C. Karyogamy is the fusion of dikaryotic cells and plasmogamy is the fusion of gametes. D. Karyogamy is the fusion of hyphae and plasmogamy is the fusion of mycelia. E. Karyogamy is the fusion of nuclei and plasmogamy is the attack of blood plasma by fungal pathogens.

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A plant takes up nutrients like ammonium nitrate to maintain

A. sexual reproduction. B. evolution. C. asexual reproduction. D. natural selection. E. homeostasis.

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If a sequence of one strand of DNA is 5´-TGACTATC-3´, what is the complementary strand?

A: 5´-TGACTATC-3´ B: 5´-ACTGATAG-3´ C: 3´-ACTGATAG-5´ D: 3´-ACTGATAG-3´ E: 3´-TGACTATC-5´

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Superantigens produce intense immune responses by stimulating lymphocytes to produce

A) endotoxins. B) exotoxins. C) cytokines. D) leukocidins. E) interferons.

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