Which chemical released from the brain causes a fever?

a. cytokines
b. interleukins
c. histamine
d. acetylcholine
e. prostaglandins


ANSWER: e

Biology & Microbiology

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A thermometer measures

(a) the degree of hot or cold. (b) temperature. (c) a and b. (d) none of the above.

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If two populations are geographically restricted groups of the same species, but display one or more traits that are somewhat different, the two groups are sometimes classified as

A. subspecies B. phenotypes C. macrospecies D. genetic clones

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this image shows a sagittal section of the male r.s. what does 3 represent?

What will be an ideal response?

Biology & Microbiology

True or False: The innate immune system is mediated by phagocytes

a. TRUE b. FALSE

Biology & Microbiology