A cell or organ that responds to commands of the control center in negative feedback is termed a(n)
A) receptor.
B) thermoregulator.
C) control center (integration center).
D) effector.
E) stimulus.
Answer: D
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A) heat and oxygen. B) blood and sodium. C) sodium and oxygen. D) oxygen and carbon dioxide. E) carbon dioxide and heat.
Which of these causes an abnormal folding of cellular proteins that results in holes in the affected tissue?
A. Viruses B. Fungi C. Protozoa D. Prions
The oily substance responsible for lubricating the surface of the skin is called ____
a. sebum b. sweat c. milk d. cerumen
Beta cell destruction that causes type 1 diabetes mellitus is a(n) ________
A) type III (immune complex) hypersensitivity B) anaphylactic hypersensitivity C) type II (antibody-dependent cytotoxic) hypersensitivity D) type I (acute) hypersensitivity E) type IV (delayed) hypersensitivity