Which of the Following Microorganisms Is the Most Commonly Used

question 46

Multiple Choice

Which of the following microorganisms is the most commonly used indicator organism for water quality testing?

• A) Salmonella spp.
• B) Hepatitis A virus
• C) Shigella spp.
• D) Escherichia coli
• E) Streptococcus thermophilus

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Definitions:

Chromosomes

Structures within cells that contain DNA and carry genetic information essential for cell division, development, and functioning of an organism.

Genes

Units of heredity made up of DNA that encode the instructions for building and maintaining an organism.

Heredity

The transmission of physical or mental characteristics from one generation to the next through genetics.

Behavior Genetics

The study of how genetic and environmental factors influence individual differences in behavior.