An individual adaptive zone can be occupied by how many different species?
a. one
b. two
c. hundreds
d. thousands
e. an infinite number
A
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The structure labeled "D" in this figure of a replication fork represents ____
a. single-stranded binding protein b. primase c. DNA ligase d. helicase e. DNA polymerase
The luteinizing hormone
a. influences ovulation. b. has no function in males. c. is produced by the corpus luteum. d. stimulates milk production. e. promotes sperm formation.
Which of the following species is NOT likely to be considered a keystone species?
a. a top predator, such as a wolf, whose diet serve to control the prey population size, which also indirectly affects the abundance and growth of vegetation b. a fish species that specializes in eating only a few aquatic plant species and that does not form a main component of the diet of the carnivores in the system c. an insect whose foraging movements result in the movement of pollen and fertilization of many kinds of plant species d. all of the above are examples that describe keystone species e. none of the above is an example that describes keystone species
How long are most donated tissues able to be stored?
A) a week B) a month C) a year D) 5 years