Which of the following is likely to have the lowest concentration of O2?

A) warm salt water
B) cool salt water
C) cool fresh water
D) warm fresh water


Answer: A

Biology & Microbiology

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A deleterious mutation in recA results in

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The Hatch-Slack cycle occurs in which of the following types of plants?

A) algae B) C3 plants C) C4 plants D) tropical grasses E) both choices C and D

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Quality control should be performed on which two organisms to determine the validity of the oxidase reagent?

a. S. aureus and S. epidermidis b. S. epidermidis and Enterococcus c. Aerococcus and Enterococcus d. Micrococcus and Aerococcus

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Globally, what is the greatest killer of species?

a. destruction of coral reefs b. air pollution c. deforestation d. water pollution e. nuclear contamination

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