Strength training causes ________.
A. muscle atrophy
B. a decrease in blood vessels to a muscle
C. muscle hypertrophy
D. a decrease in the number of mitochondria in a muscle cell
Answer: C
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What statement does NOT describe the methods by which chemical buffer systems operate to maintain pH?
A) Buffer systems consist of a weak acid and its conjugate weak base which function to resist large swings in pH. B) When a strong acid is added to a solution, the weak base of the buffer system binds the released hydrogen ions and removes them from solution. C) When a strong base is added to a solution, the buffer system's weak acid releases its hydrogen ions to bind the base ions. D) All excess hydrogen ions are removed from the body in the urine.
The subatmospheric pressure of the __________ prevents the mammalian lung from collapsing
Fill in the blank with correct words.
Vitamin A deficiency may take years to become noticeable because
A. the liver stores it. B. the brain stores it. C. most vitamin A leaves the body in urine. D. it is difficult to eat too many carrots.
Elevated PCO2 causes pH to drop.
a. true b. false