What would be the most significant, immediate result of a complete collapse of bee colonies across the United States?
a. a decrease in the size and brilliance of commercial flower arrangements
b. global shortages of critical honey supplies, and related baked goods
c. failure of fruit and vegetable crops that depend on bees for pollination
d. a collapse of the insect repellant and fly-swatter industries
c. failure of fruit and vegetable crops that depend on bees for pollination
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How does the level of genetic variation in humans typically compare to other species?
A. higher than other species B. lower than other species C. about the same as other species D. not sure because we have been unable to accurately measure genetic variation in humans and other species
How many chromosomes can a gamete possess as a result of nondisjunction?
A) n + 1 or n - 1 B) 2n + 1 or 2n - 1 C) 2n - 1 only D) 2n + 1 or n - 1
If one strand of a DNA double helix has the sequence GTCCAT, what is the sequence of the other strand?
A) ACTTGC B) TGAACG C) CAGGTA D) CAGGUA
What term is associated with spongy bone but not with compact bone?
A. osteocytes B. bone marrow C. trabeculae D. blood vessels E. canaliculi