Which of the Following Can Be Used to Directly Count

question 42

Multiple Choice

Which of the following can be used to directly count bacterial cells without the use of a microscope?

• A) viable counts
• B) optical density
• C) fluorescence-activated cell sorter
• D) Petroff-Hauser counting chamber

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Definitions:

Type I Error

The statistical error that occurs when a true null hypothesis is incorrectly rejected.

Null Hypothesis

A statistical hypothesis that assumes no significant difference or effect in a given situation, used as a basis for testing.

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A contract between an insurer and a policyholder in which the insurer guarantees payment of a death benefit to named beneficiaries upon the death of the insured.

Professional Men

Individuals who are males working within their expertise or occupation, often requiring specialized education and training.