Living at high altitudes can cause ____ as a respiratory adaptation
a. elevated erythrocyte count
b. decreased number of alveoli
c. decreased number of lung capillaries
d. hemoglobin molecules with less affinity for O2
e. decreased erythrocyte count
ANSWER: a
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Czar Nicholas II of Russia and Queen Victoria’s granddaughter, Alix, were the parents of a son with the genetic
disorder affecting the mechanism of blood clotting called ____________________.Fill in the blank(s) with the appropriate word(s).
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Fill in the blank(s) with correct word
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