Which of the following countries does not contain any biodiversity hotspots?
a. Brazil
b. Canada
c. Cuba
d. New Zealand
B
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. In which of the following does a rash start on the palms and soles and progress toward the trunk?
A. Epidemic typhus B. Typhoid C. Lyme disease D. Impetigo E. Rocky Mountain spotted fever
Where are neurotransmitters stored?
a. axon terminals b. dendrites c. neuron cell bodies d. axon cytoplasm e. all of these store neurotransmitters
A Barr body in a mammalian female cell represents:a
an inactivated oocyte. b. a polar body. c. a degenerate nucleus. d. an inactivated X chromosome. e. an inactivated Y chromosome.
In the laboratory, fruit flies (Drosophila) were artificially selected for the number of bristles on their bodies. One population (R) was selected for low numbers of bristles, a second population (S) for high numbers of bristles.
After 35 generations (about 1 year's time), the two populations R and S were studied. Researchers found
A. a huge increase in S, a huge decrease in R, with no overlap whatsoever. B. no change was seen; it's much too soon. C. a vast, overlapping range of bristle numbers was seen. D. a slight increase in bristles in S, a slight decrease in R, with a little overlap in the middle ranges. E. some slight increase of bristle numbers was already evident.