Which of the following is NOT characteristic of a coliform?

A) facultatively aerobic
B) gram-negative
C) rod shaped
D) resistant to chlorination


Answer: D

Biology & Microbiology

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Which groups of organisms harvest their energy directly from the environment?

a. Wolves b. Heterotrophs c. Autotrophs d. Deer e. Rabbits

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Why are alternate theories to evolution not viewed as accurate by scientists?

a. There are no viable theories to evolution. b. Alternate theories to evolution do not include the process of natural selection. c. Alternate theories to evolution are not based on scientific evidence and cannot be verified through scientific means. d. Alternate theories to evolution are viewed as accurate by the scientific community at large.

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Why is it that mutation, acting alone, has little effect on allele frequency, and therefore evolution? What other factors

will magnify the effect? What will be an ideal response?

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Based on the colligative properties of water, what would happen if one were to add a solute to water?

A. The freezing point of water would increase. B. Nothing would change with respect to the freezing point or boiling point of water. C. The freezing point of water would decrease. D. The boiling point of water would increase. E. Both the freezing point of water would decrease and the boiling point of water would increase.

Biology & Microbiology