Darwin first conceived the idea of evolution by natural selection while he was
a. aboard the HMS Beagle.
b. in his study examining his specimens.
c. reading a book by Malthus entitled Population.
d. studying beak differences in South American finches.
e. reading a paper by Alfred Wallace.
c. reading a book by Malthus entitled Population.
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Exposure to lead has been linked to which of the following?
a. increased susceptibility to colds. c. problems in verbal and auditory processing. b. hypersomnia. d. asthma.
You are a grandparent and your son and daughter-in-law are about to get divorced. What is likely to happen with regard to your involvement with your grandchildren?
a. It will not change. b. You will see your grandchildren more frequently. c. You will see your grandchildren much less frequently. d. You will never see your grandchildren again.