Geosmins are
A. a strain of Bacillus.
B. nitrogen-fixing bacteria.
C. metabolites that give soil its odor.
D. produced by Rhizobium.
E. metabolites that give soil its odor AND produced by Rhizobium.
C. metabolites that give soil its odor.
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A community of organisms interacting with their physical environment is a(n) ______.
A. population B. organism C. biosphere D. ecosystem E. macromolecular community
What properties are attributable to phenolics?
_____ antioxidants in red wine. _____ the sweetness of honey. _____ the flavor of vanilla. _____ the absorption of ultraviolet radiation. _____ the flavor of chilies.
Which country has the smallest ecological footprint?
a. Mexico b. China c. United States d. India e. Canada
Which system picks up excess extracellular fluid and reclaimable solutes and returns them to the
cardiovascular system? a. urinary b. digestive c. reproductive d. venous e. lymphatic