Sutherland discovered that the signaling molecule epinephrine _____
A) brings about a decrease in levels of cAMP as a result of bypassing the plasma membrane
B) causes lower blood glucose by binding to liver cells
C) interacts directly with glycogen phosphorylase
D) elevates cytosolic concentrations of cyclic AMP
D
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Differences in appearance or function that are passed on from generation to generation is
1.microevolution. 2.macroevolution. 3.phenotypic variation. 4.quantitative variation. 5.acquired characteristics.
The __________ is a system of fluid-filled sacs and canals in the inner ear. Fill in the blank(s) with the appropriate word(s)
Which of the following would have the LEAST genetic diversity?
A. a population of mice adapted to a specific location B. a species with a world-wide distribution C. a population of intraspecific hybrid corn plants used by farmers D. a population of mice that only has 10,000 individuals
Which of the following occurs as air rushes into the lungs from the environment to equalize air pressure?
a. inspiration b. contraction c. expiration d. none of the above