Hair cells of the inner ear are:
a. chemoreceptors
b. mechanoreceptors
c. photoreceptors
d. olfactory receptors
e. thermoreceptors
b
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Plants that are called C4 plants are better able to utilize ________ than C3 plants.
A. oxygen B. minerals C. water D. carbon dioxide E. chlorophyll
Substances that are recognized as foreign and provoke immune responses are called ________.
A. infective agents. B. inducers. C. antigens. D. antibodies.
According to the figure, what is occurring during day 2?
A. ovulation
B. release of corpus luteum
C. menstruation
D. luteal regression
E. copulation
Which of the following is part of the initial response to cold temperature?
a. vasodilation of peripheral blood vessels b. panting c. sweating d. shunting of the blood to the core regions of the body e. decreased metabolism