Which of the following is not a problem
caused by Canada geese?
a. Their feces can cloud lakes.
b. Their feces contain harmful bacteria.
c. They can destroy lawns.
d. They can be dangerous to air traffic.
e. All of these
E
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Which type of drug may interfere with the beneficial effects of a fever?
1.antibiotics 2.pain killers 3.aspirin 4.antidepressants 5.muscle relaxants
In the liver, carbon dioxide and ammonia are combined to form the less toxic waste product ____
a. urea b. water c. creatine d. sulfuric acid e. phosphoric acid
What happens to most of the nitrogen in a leaf every autumn?
A) It is resorbed by the tree. B) It is released as N2 gas. C) It is broken down in soil. D) It is consumed by decomposers.
If the foods preferred by each species are found on different parts of the island, and if the flies mate and lay eggs on their food sources, regardless of the location of the food sources, then the speciation events involving these fly species may have been driven, at least in part, by which of the following?
A) autopolyploidy B) allopolyploidy C) species selection D) genetic drift E) habitat differentiation