HIV is a virus that is particularly difficult to eradicate
A) because of the size of its DNA genome.
B) because it rarely mutates.
C) because after it mutates it can be resistant to drugs.
D) due to its small size.
Answer: C
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Which of these characteristics would most likely discourage self-pollination in a flower with both stamens and pistils?
A. many more stamens than pistils B. long pistils and short stamens C. long stamens and short pistils D. wind pollination E. determinant plants
Which is a healthy BMI
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The biomass of _______________, if they were all collected, dried out, and weighed, exceeds that of all the plants and animals on earth.
a) bacteria b) mites c) nematodes d) archaea e) insects