Four of the five answers listed below are cofactors or coenzymes. Select the exception
a. mineral
b. water soluble vitamin
c. metallic ions
d. NAD+
e. protein
E
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A rule of thumb known as the morphospecies concept holds that:
A. morphology may vary within a species on the basis of sex. B. morphology is generally consistent within a species. C. morphology is not a reliable indicator of common species. D. morphology may vary within a species on the basis of life stage.
Filamentous organisms such as Sphaerotilus and Thiothrix can lower the efficiency of activated sludge processes by causing ________.
A. building sludge B. acidified sludge C. bulking sludge D. anaerobic sludge
Sulfate-reducing bacteria transfer electrons to
__________ in their environment. a. SO2 b. H2 c. H2SO4 d. S e. SO4
In women, blocked oviducts can result from sexually transmitted diseases
a. True b. False