Which is a characteristic of carbon dioxide?
A) It is composed of polar molecules.
B) It can pass easily through a cell membrane.
C) It is required by the body.
D) It makes up a majority of the atmosphere.
E) It is a nutrient.
Correct Answer:
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A) hydrogen
B)
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A) starch.
B) glycogen.
C) fructose.
D) cellulose.
E)
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A) are lipids.
B) function as biological catalysts.
C)
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