Select the response that describes a broad-spectrum drug.

A. A drug that is effective against E. coli (Gram-negative) and Staphylococcus aureus (Gram-positive)
B. A drug that is effective against Staphylococcus and Streptococcus (Gram-positive) but not Klebsiella (Gram-negative)
C. A drug that is effective against Gram-negative organisms
D. A drug that is effective against Gram-positive organisms


Answer: A

Biology & Microbiology

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desertification EXCEPT a. drought. b. overplowing. c. overgrazing. d. natural fertilizer. e. All of these can contribute to desertification

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Within which peritoneal structure the cystic artery can be found?

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Chromatin inside the nucleus are

a. DNA b. RNA c. ATP

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If the four cells shown resulted from cell division of a single cell with diploid chromosome number 2n = 4, what best describes what just occurred?


A) normal meiosis
B) translocation
C) inversion
D) nondisjunction

Biology & Microbiology