During a fever the ________ will send out a signal to cause the blood vessels in the skin to ________
a. hypothalamus, spasm
b. hypothalamus, dilate
c. pituitary, constrict
d. hypothalamus, constrict
e. pituitary, dilate
d
Biology & Microbiology
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The redness and induration found after a tuberculin skin test involve the action of
A. sensitized T cells. B. IgE. C. complement. D. basophil cells.
Biology & Microbiology
CO2 and other gases, which absorb the longer wavelengths of infrared light and radiated heat from Earth, are responsible for causing the
A. ozone layer depletion. B. acid rain. C. decreased biodiversity. D. greenhouse effect.
Biology & Microbiology
Microbes that cause harm to living things are known as:
Biology & Microbiology
Which process is directly used by autotrophs to produce glucose
a. diffusion b. photosynthesis c. respiration d. active transport
Biology & Microbiology