Which genus is used to produce beer and wine?
a. Agaricus
b. Aspergillus
c. Amanita
d. Rhizopus
e. Saccharomyces
E
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What form of photosynthesis evolved first on Earth?
A) oxygenic B) anoxygenic C) autotrophic D) heterotrophic
Bioaugmentation
A. adds specific microorganisms to the polluted site. B. only enhances the growth, onsite, of the resident population of microbes. C. usually utilizes genetically engineered bacteria. D. is typically done offsite. E. only enhances the growth, onsite, of the resident population of microbes AND usually utilizes genetically engineered bacteria.
In the annual rings of woody trees, how does the cell size within the xylem of the spring and summer wood compare to the fall and winter wood?
A. It is more dense. B. It has smaller vessels. C. The cell walls are thicker. D. It is younger. E. The cells are larger.
Heavy metals such as silver, mercury and copper are effective antimicrobials due to their ability to bind to the regulatory site of enzymes, thus acting as an irreversible non-competitive inhibitor.
Indicate whether the statement is true or false