For inspiration to occur, barometric pressure must be __________ alveolar pressure.
A) greater than
B) less than
C) equal to
Answer: A) greater than
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Which of the following is a series of convulsive inhalations followed by a single prolonged exhalation where the rima glottidis closes earlier than normal after each inhalation so only a little air enters the lung with each inhalation?
a) sobbing
b) sneezing
c) coughing
d) hiccupping
e) Valsalva maneuver
Which rodent species requires Vitamin C in their diets?
a. gerbil c. guinea pig b. chinchilla d. hedgehog
The kidneys:
a. receive 10% of the blood pumped from the heart b. help maintain proper blood pH c. receive 5% of the blood pumped from the heart d. both A and B above
Why does meiosis pass through two complete cycles?
A. Because two cycles are necessary to produce the proper shape of the gametes B. So that the zygote will have the diploid number of chromosomes C. Because the chromosomes are still double-stranded at the end of meiosis I D. To allow crossing over to occur E. To assure that the gametes will be of the correct size