A Microbial Ecologist Is Interested in Whether the Microbial Community

question 46

Multiple Choice

A microbial ecologist is interested in whether the microbial community of a pond changes when it rains. She knows that rainfall will increase the number of bacteria, but she is interested in the pattern of diversity. She collects a water sample from a pond two days before a rainfall and two days after and plates her samples on agar (a method to measure bacteria) and counts the number of colonies she observes for each of three bacteria: E. Coli, Salmonella, and Giardia. In the pre-rain sample she observes 21, 57, and 32 colonies respectively. In the post-rain sample she observes 59, 83, and 88 colonies respectively.
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-Which of the mosaic tables shown correctly depicts this data?

• A) Graph A
• B) Graph B
• C) Graph C
• D) Graph D

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Definitions:

Power

The ability or capacity to do something or act in a particular way, especially as a faculty or quality.

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A special right, advantage, or immunity granted or available only to a particular person or group of people.

Politically Correct

Language or policies designed to minimize offense by emphasizing inclusivity, especially relating to gender, race, and cultural sensitivities.

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