What is the pH of pure water?
a. 8
b. 7
c. 6
d. 5
e. 4
b
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As sound levels increase in the spiral organ (of Corti), ________
A) inner hair cells stiffen the basilar membrane B) outer hair cells bend the cilia away from the kinocilium C) inner hair cells bend the cilia away from the kinocilium D) outer hair cells stiffen the basilar membrane
The difference between a person's maximum cardiac output and resting cardiac output is called the
a) stroke volume. b) peripheral resistance. c) afterload. d) cardiac reserve. e) venous return.
Insensible water loss includes loss
a. during cellular metabolism b. from the lungs c. from sweat d. in the feces e. from none of the above
The chemoreceptor reflexes help maintain homeostasis
A. under normal conditions. B. when epinephrine levels increase. C. when H+ concentrations decrease. D. when stimulated by changes in blood osmotic pressure. E. when CO2 levels increase.