An example of an organism that parasitizes a host plant is
A) a mycorrhizal fungus.
B) nitrogen-fixing bacteria in root nodules.
C) a Venus flytrap.
D) mistletoe.
Answer: D
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The only group of oxygenic phototrophic bacteria are the
A) green nonsulfur bacteria. B) Chloroflexi. C) Cyanobacteria. D) Chlorobi.
Cerebral edema would be treated with a(an) ________ intravenous solution of mannitol.
Fill in the blank(s) with the appropriate word(s).
A saturated hydrocarbon molecule has
a. three double bonds. b. one double bond. c. one double and one triple bond. d. all single bonds. e. all triple bonds.
A key limitation of the coefficient of community is that it lacks the ability to
A) compare relative abundances of each species. B) calculate the similarity between two communities. C) know the number of species common between communities. D) compute a percent similarity value.