The portion of the nervous system that promotes calm is the:
(a) peripheral nervous
system (b) parasympathetic nervous system (c) sympathetic nervous system (d) somatic nervous system
ANSWER: B
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A key role for natural killer cells in controlling cancer is NOT supported by the
A. observation that NK-deficient mice have higher than normal rates of sarcoma development. B. observation that NK cells can kill cancer cells in vitro. C. observation that many tumors down-regulate MHC genes, including NK receptors. D. observation that cellular stress up-regulates many NK receptors. E. All of these support the role.
Type I hypersensitivities have been called all of the following except
A) atopy. B) allergies. C) anaphylaxis. D) delayed hypersensitivities.
Which disease is associated with coal miners??
A) silicosis B) anthracosis C) emphysema
Explain the difference between cognitive therapy and behavioral therapy
What will be an ideal response?