Compared to uric acid, producing urea as the main form of nitrogenous waste requires ____
a. more energy and water
b. less energy and water
c. more energy and less water
d. the same amount of energy and water
e. less energy and more water
ANSWER: e
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The immunologic technique involving the transfer of proteins separated by electrophoresis to nitrocellulose sheets is ________.
A. immunoblotting B. complement fixation C. direct immunofluorescence D. immunoelectrophoresis
A U.S. submarine surfaced ____ miles from
the nearest land in the arctic and found polar bears hunting on the frozen sea. a. 100 b. 1,000 c. 500 d. 50,000 e. none of these
If your roommate smokes and she gets pregnant, what dangers would you warn her about?
What will be an ideal response?
Exogenous antigens are processed for immune recognition by ________ cells
A) dendritic B) all nucleated C) macrophage D) helper T E) dendritic and macrophage