Which of the choices below is not a mechanism of heat production?
A) vasoconstriction of cutaneous blood vessels
B) shivering
C) sweating
D) enhanced thyroxine release
C) sweating
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The majority of skeletal muscle fibers in the body are ________ fibers.
A. fast B. slow C. intermediate
Endocrine tissues that secrete steroid hormones are derived from
a) mesoderm. b) endoderm. c) ectoderm. d) a combination of two or more layers. e) none of the layers that are listed.
The carotid sinuses and aorta contain receptors that are sensitive to changes in
a. blood pressure b. acid level in the blood c. oxygen level in the blood d. all of the above e. only a and c
Antibodies given to individuals have come from all of the following EXCEPT
A. monoclonal antibodies. B. recovered donors. C. individuals never exposed to the disease. D. genetically engineered bacteria.