For question 15, what is the color of the light emitted by the fluorescent protein?
A) red
B) blue
C) yellow
D) green
Ans: A) red
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Given that fertility rate is defined as each woman producing exactly enough offspring to replace herself and her offspring's father, if the fertility rate is sustained for a generation, then _____
A) r = 0 and there is zero population growth B) 0 < r < 1 C) r = 1 D) r > 1 E) population size is at carrying capacity
A possible reason for deep-sea gigantism is:
a. the long life of these animals, compared with shallow-water relatives. b. the healthy diet of these animals. c. the high pressure of these waters. d. the lack of predators, which means longer life and larger size. e. the high metabolism of deep sea animals.
One of the two main angiosperm clades, this group has about 200,000 species. Members of the group
all have pollen grains with three grooves, and most have two cotyledons. Most also have net-veined leaves.
a. eudicots b. the star anise group c. monocots d. water lilies e. magnoliids
All vertebrates have
a. two nerve cords. b. a nerve cord in the front of the body. c. a nerve cord on the side of the body. d. a hollow dorsal nerve cord. e. a tubular ventral nerve cord.