When central chemoreceptors detect a drop in the pH of the cerebrospinal fluid,
A. the vagus and phrenic nerves stimulate decreased production of the catalyst carbonic anhydrase.
B. pontine respiratory centers trigger a decrease in rate and depth of breathing.
C. medullary respiratory centers trigger a decrease in rate and depth of breathing.
D. medullary respiratory centers trigger an increase in rate and depth of breathing.
Answer: D
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Primates have a stronger sense of __________ and a weaker sense of __________ than other mammals.
A) hearing; sight B) sight; smell C) taste; sight D) hearing; taste
During an action potential, repolarization is due to ____ ions leaving the cell.
Fill in the blank(s) with the appropriate word(s).
An example of a flat bone would be the
A. femur (of thigh). B. radius (of forearm). C. trapezoid (of wrist). D. sternum (breast bone). E. calcaneus (heel).
Cells can remodel their membranes to preserve fluidity in a process known as __________ adaptation
Fill in the blank with the correct word.