Louis Pasteur demonstrated that fermentation of sugar to produce alcohol is caused by

A. aerobes.
B. facultative anaerobes.
C. obligate parasites.
D. archaea.
E. prokaryotes.


Answer: B

Biology & Microbiology

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Indicate whether the statement is true or false.

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Potable water

A. is not suitable for human consumption. B. requires boiling to make it safe to drink. C. is suitable for human consumption. D. requires chemical or biological treatment to remove heavy metals.

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Which invention led to trans fats being marketed as a solid cooking fat?

a. the electric light b. the telephone c. the automobile d. the microwave oven e. the refrigerator

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In DNA, adenine only pairs with _____.

A) thymine B) cytosine C) guanine D) uracil

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