In homeostatic control, the _________ compensates for any deviation between the actual value and the set point. In body temperature regulation in mammals, this function is carried out by __________.

A. effector; skeletal muscle
B. sensor; neurons
C. effector; brain
D. integrator; skeletal muscle
E. integrator; brain


A. effector; skeletal muscle

Biology & Microbiology

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a. chemical substances. b. pressure changes. c. vibrational changes. d. light wavelengths. e. changes in solute concentration.

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The process in which the intercostal muscles contract, pulling the rib cage upward and outward and causing the lungs to inflate, is called ________

A) inspiration B) expiration C) exhalation D) deflation

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The function of a mordant in staining procedures is to

A) fix the specimen to the slide. B) provide contrasting color. C) decrease the solubility of dye molecules. D) remove dye from certain structures. E) damage cellular structures so they take up dyes better.

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Which of the following is NOT a feature associated with filtration?

A. nitrocellulose or plastic membrane filters B. sterilization of heat-sensitive materials C. varying thicknesses of membrane filters used D. use of HEPA filters to filter air E. ability of some filters to trap viruses and proteins

Biology & Microbiology