Compared to 20 years ago, food portions in a restaurant today have
A. become much smaller.
B. almost doubled in size.
C. stayed the same.
D. none of the above.
ANS: B
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What is the primary cause of deaths that occur during exercise?
A) Low level of physical fitness B) Pre-existing health conditions C) Heat exhaustion D) Allergic reactions E) Electrolyte imbalance
As a rule of thumb, athletes who sweat heavily and lose large amounts of sodium should consume approximately _____ g of sodium per hour
a. 0.25 b. 0.5 c. 1 d. 1.5
The mechanism to maintain a neutral pH of body fluids is known as __________.
a. polarity of water b. osmosis c. thirst mechanism d. acid-base balance
Osmosis occurs when water moves from a region of high osmotic pressure to a region of low osmotic pressure
Indicate whether the statement is true or false