The large surface area of the inside of the small intestine means that this structure is
A. maladaptive in that it harbors bacteria.
B. derived from an embryological structure that served a different function.
C. well adapted for its physiological role in absorption.
D. anatomically complex but physiologically simple.
Answer: C
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Trained athletes tend to have ________ heart rates and ________ stroke volumes than nonathletes at rest
A) higher; higher B) lower; lower C) higher; lower D) lower; higher E) similar; higher
Platelets can initiate the clotting process by
A) releasing enzymes and other factors at the appropriate times. B) breaking down cellular debris by phagocytosis. C) attracting white blood cells to the site of the injury or infection. D) coagulating plasma proteins and cellular debris into a plug. E) None of the answers are correct.
______________ thyroidectomy consists of using radioactive iodine to suppress thyroid function
Fill in the blank(s) with correct word
During ________________________________________ disease, the body's immune system destroys its own cells
Fill in the blank(s) with correct word