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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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
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