When the body responds to a relatively harmless substance as a dangerous pathogen and mounts an immune response, this response is called
A. passive immunity.
B. active immunity.
C. pathogenesis.
D. an allergic reaction.
D. an allergic reaction.
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How many different MHC classical class I proteins does each nucleated cell in a human heterozygous at the MHC locus express?
A. None. Only APC express class I. B. One C. Two D. Three E. Six
The stool guaiac test detects occult or hidden blood
Indicate whether the statement is true or false
Static flexibility is
A. the range of motion achieved in a slow, controlled stretch. B. a stretch-contract-stretch partner-assisted flexibility program. C. holding your breath as you strain against a closed epiglottis. D. a natural response that causes a stretched muscle to contract. E. the range of motion achieved by quickly moving a limb to its limits.
?______________ is characterized by self-starvation and excessive weight loss.
Fill in the blank(s) with the appropriate word(s).