The function of red blood cells is to
A) carry nutrients from the digestive system to the body's cells.
B) defend the body against infectious organisms.
C) remove carbon dioxide from the lungs.
D) remove nitrogenous wastes from active tissues.
E) carry oxygen from the lungs to the body's cells.
E) carry oxygen from the lungs to the body's cells.
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The integrating center for the negative feedback loop that regulates body temperature is the
A) hypothalamus. B) skin. C) temperature sensor. D) positive feedback center. E) thermostat.
From each primary gametocyte, men produce ________ sperm.
A. one B. two C. three D. four
Select the incorrect statement about ADH
a. It is also called vasopressin. b. It is not secreted if the body consumes large amounts of water. c. It is secreted by the distal tubule. d. It is secreted if the body fluids become hypertonic. e. It stimulates reabsorption of water.
The figure illustrates bones of the right lower limb. What does "C" represent?
A. femur B. fibula C. tarsals D. tibia E. patella