Transgenic salmon:
A) carry a version of the growth hormone gene that functions year-round, instead of primarily in the summer.
B) have a greater resistance to viruses than wild salmon.
C) are able to eat a wider variety of foods than wild salmon.
D) show an increase in growth rate relative to wild salmon, but the increase was less than scientists expected.
E) represent an experiment in genetic engineering that failed.
A) carry a version of the growth hormone gene that functions year-round, instead of primarily in the summer.
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A. growth hormone. B. glucagon. C. thyroid hormone. D. leptin. E. thyroid-stimulating hormone.
The trade barrier that involves levying one tariff rate for a certain amount of an imported commodity and a higher tariff rate for quantities in excess of that amount is the
a. export subsidy. b. import subsidy. c. tariff quota. d. quality standards requirement.
Describe where pollen grains are produced in a plant. Fill in the blank(s) with the appropriate word(s)
The link between mother and embryo through which nutrition, oxygen, and wastes pass is the
a. chorion. b. placenta. c. amnion. d. yolk sac. e. allantois.