In an isotonic contraction, about 50 percent of the energy consumed is realized as external work and the remaining 50 percent is converted to heat
Indicate whether the statement is true or false
F
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Which property of water explains its ability to prevent sudden changes in body temperature?
A) cushioning B) chemical reactant C) polarity D) high heat capacity
In one kind of second-messenger system,
a. a small amount of one hormone (second messenger) is required to release another b. a tropic hormone (first messenger) stimulates secretion of another hormone (the second messenger) c. the hormone binds to a specific surface receptor, whereupon the hormone-receptor complex moves into the cell to combine with an intracellular receptor d. releasing hormones (first messenger) from the hypothalamus regulate anterior pituitary hormones (second messengers) e. a hormone (first messenger) binds to surface receptors that activate adenylate cyclase, which then catalyzes cAMP formation
The clumping of foreign cells that occurs when antibodies cross-link their antigens is known as
A. neutralization. B. precipitation. C. agglutination. D. fixation. E. opsonization.
Anaphylaxis is the most serious potential side effect of ________________________________________
Fill in the blank(s) with correct word