Which of the Following Statements Regarding Coliform Bacteria Is Correct

question 28

Multiple Choice

Which of the following statements regarding coliform bacteria is correct?

• A)Coliforms from the human and bovine GI tracts differ, so identifying the specific microbe will indicate the source of contamination.
• B)Petri dishes used to enumerate coliforms are best incubated at 45-48°C.
• C)The presence of Klebsiella is a strong indicator of fecal contamination.
• D)Coliforms derive from the intestinal tract and therefore indicate fecal contamination.

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Definitions:

Natural Gas

A fossil fuel consisting primarily of methane, used as an energy source for heating, cooking, and electricity generation.

Autotrophic

Referring to organisms that can produce their own food from inorganic substances using light or chemical energy, such as plants and some bacteria.

Heterotrophic

Organisms that obtain their energy by consuming other living or dead organisms.

Nonliving Environment

Refers to the abiotic components of an ecosystem, including sunlight, temperature, wind, water, and minerals.