Which animals serve as a reservoir for cholera-causing bacteria?

a. aquatic birds
b. copepods
c. fish
d. humans
e. algae


b

Biology & Microbiology

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Secondary metabolites may be antibiotics

Indicate whether this statement is true or false.

Biology & Microbiology

Gram-positive bacteria such as Propionibacterium acnes limit the growth of gram-negative bacteria and some fungi on the human skin by converting secreted ________ to compounds with antimicrobial activity.

A. urea B. lipids C. organic acids D. salts

Biology & Microbiology

Capillary waves are small

Indicate whether the statement is true or false

Biology & Microbiology

The "endosymbiont theory" states that eukaryotic cells work together to form a multicellular organism.

a. true b. false

Biology & Microbiology