Most gastric ulcers are caused by

A) overuse of aspirin and/or ibuprofen.
B) excessive mental stress.
C) bacteria.
D) overconsumption of alcohol.


Answer: C

Biology & Microbiology

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In medicine, agriculture, and conservation applications of biotechnology, the common genetic unit used is the

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____________________ is a substance released from metabolically active muscle and its concentration in the blood

can be used to assess kidney function. Fill in the blank(s) with the appropriate word(s).

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An organic molecule with the formula C6H12O6 may have many structural formulae. These different three-dimensional forms of the same molecule are known as 

A. isomers. B. isotopes. C. isotones. D. All the choices are correct.

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Proteins are catabolized by hydrolytic cleavage to amino acids by the action of enzymes called ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology