The clumping of red blood cells, which occurs when incompatible blood types are mixed, is an example of
A) agglutination.
B) opsonization.
C) sensitization.
D) precipitation.
E) immunological surveillance.
A) agglutination.
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DNA replication ________.
A) can also be called mitosis B) is spontaneous, not requiring enzyme action C) takes place during interphase of the cell cycle D) occurs only in translationally active areas
The activation of olfactory receptors requires that the odorant become immersed in:
A) mucus. B) cerumen. C) saliva. D) blood.
What type of muscle tissue causes vasoconstriction?
A. skeletal muscle B. smooth muscle C. cardiac muscle
All of the following are changes due to age-related decreases in endocrine secretions, except
A. decrease in muscle mass. B. decrease in bone mass. C. change in sleeping patterns. D. increased susceptibility to infection. E. inability to regulate blood glucose levels.