The dizzy feeling you encounter when you sit up is being activated by the
A. thermoreceptor in your ear lobe.
B. photoreceptor in the skin.
C. mechanoreceptor in the vestibular apparatus.
D. proprioceptor in the cochlea.
E. chemoreceptor in the ear drum.
C. mechanoreceptor in the vestibular apparatus.
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The area indicated by “A” in the figure represents
a. sunlight energy in the environment. b. heat energy in the environment. c. electrical energy in the environment. d. ionizing radiation in the environment. e. the explosion of the hydrogen gas to release energy for the reactions.
_____ is an increase in the number of circulating white blood cells
Fill in the blank(s) with the appropriate word(s).
Cholesterol affects the fluidity of membranes into which it inserts by
a. increasing membrane fluidity at all temperatures. b. decreasing membrane fluidity at all temperatures. c. decreasing membrane fluidity at high temperatures and increasing membrane fluidity at low temperatures. d. increasing membrane fluidity at high temperatures and decreasing membrane fluidity at low temperatures.
Regarding syphilis, which one of the following is most accurate?
A. The characteristic lesion of primary syphilis is a painful vesicle on the genitals B. In secondary syphilis, the number of organisms is low, so the chance of transmitting the disease to others is low C. In secondary syphilis, both the rapid plasma reagin (RPR) and the fluorescent treponemal antibody-absorbed (FTA-ABS) tests are usually positive D. The antibody titer in the FTA-ABS test typically declines when the patient has been treated adequately E. In congenital syphilis, no antibody is formed against T. pallidum because the fetus is tolerant to the organism