Which of these descriptions best matches the term lymphocytes?
A) release histamine
B) become macrophages
C) defend against specific pathogens or toxins
D) kill bacteria using cytotoxic chemicals
E) often elevated in allergic individuals
Answer: C
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A joint in which the bone can move in two planes is said to be ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is not a way to conserve or generate heat?
A) shivering thermogenesis B) nonshivering thermogenesis C) vasoconstriction in the skin D) increasing the depth of respirations E) release of thyroxine
at least one-half of one parathyroid gland is necessary to maintain normal parathormone levels
a. true b. false
Which statement accurately describes amino acids?
A. There are twenty varieties, with each type having a different C-terminal end. B. There are twenty varieties, with each type having a different R group. C. There are over 200 varieties, with each type having a different C-terminal end. D. There are over 200 varieties, with each type having a different R group.