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