_____ are chemicals that alter the temperature regulating part of the hypothalamus.
Fill in the blank(s) with the appropriate word(s).
Ans: pyrogens
Biology & Microbiology
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Which of these is part of the defense against parasites, such as tapeworms and hookworms, that have invaded the body?
A) neutrophils B) lymphocytes C) eosinophils D) monocytes
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Oxygen-rich blood moves through the left side of the heart while oxygen-poor blood moves through the right side.
a. true b. false
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Double fertilization produces a ________ embryo and a ________ endosperm.
A. triploid, diploid B. haploid, diploid C. diploid, haploid D. haploid, triploid E. diploid, triploid
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