The largest annual movement of carbon between reservoirs occurs ____
a. from plants to atmosphere
b. from soil to atmosphere
c. from atmosphere to ocean
d. from atmosphere to plants
e. from ocean to atmosphere
ANSWER: d
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Each plant has ____ alleles present for each characteristic, and it will pass along only ____ of these alleles when gamete cells are produced (sperm or egg).
Fill in the blank(s) with the appropriate word(s).
A person with type B blood can receive a transfusion of either type O blood or type AB blood.
a. True b. False
Hybridization of two species in which of the following cases could lead to the extinction of one of the original species?
A) Hybridization increases inbreeding, which decreases the average fitness of the species. B) It may introduce deleterious genes from one species to another. C) The two species increase their population sizes, thus increasing the effects of genetic drift. D) An endangered species may further decline by producing less-fit hybrid offspring. E) The hybrid offspring may outcompete the parental species.
Embryonic stem cells are taken from:
A) iPS cells. B) blastocysts. C) eggs. D) adult tissues.