Which of the following is a fermentation product useful in the manufacture of cheese?

A) acetic acid
B) ammonia
C) ethanol
D) lactic acid
E) pyruvic acid


D

Biology & Microbiology

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The results of an experiment

(a) don’t have to be repeatable. (b) should be repeatable by the investigator. (c) should be repeatable by other investigators. (d) must be both b and c.

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Which of the following choices correctly identifies a reactant in the following chemical equation?

CO2 + H2O ? H2CO3 a. carbonic acid b. oxygen c. water d. sugar e. carbon monoxide

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Which adaptation is found in the leaves of cacti?

A) They store excess starch. B) They are dropped during periods of drought. C) They have been modified into spines. D) They are very large to absorb plenty of sunlight.

Biology & Microbiology

The cochlea is part of the:

A) brain. B) inner ear. C) outer ear. D) eye.

Biology & Microbiology