Aerobic catabolism of methane, involving methane monooxygenase, produces ________, which is further oxidized into ________ by a dehydrogenase; and finally CO2 is produced
a. methanol / acetate
b. methanol / formaldehyde
c. methyl oxide / acetate
d. methyl oxide / formaldehyde
Answer: B
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MIC endpoints can be reported results obtained by the following conventional AST methods EXCEPT:
a. agar dilution. b. automated broth dilution. c. disk Diffusion. d. E-test.
Why are choanoflagellates considered to be the ancestor of animals?
A. similarities in cell structure. B. similarities in rRNA. C. similarities in DNA. D. similarities in embryonic development.
Predators often avoid a mimic species because of ____.
A. bad taste B. toxic secretion C. resemblance to a well-defended species D. painful sting E. cryptic coloration
Which of the following statements about the effects of deforestation on terrestrial ecosystems are true? Check all that apply.
A. Today, deforestation is one of the greatest problems facing terrestrial ecosystems. B. Deforestation can lead to eutrophication of aquatic ecosystems. C. At present rates of deforestation, it is predicted that all of the world's tropical rain forests will be degraded or gone within 10 years. D. Deforestation can lead to loss of topsoil. E. Deforestation usually leads to the overaccumulation of nutrients such as nitrates/nitrites in the soil.