All of the Following Are Biological Agents That Can Cause

question 21

Multiple Choice

All of the following are biological agents that can cause food poisoning EXCEPT

• A)the E.coli O157:H7 strain.
• B)Norwalk virus.
• C)antibiotics added to animal feed.
• D)Salmonella contamination of poultry and other foods.

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Definitions:

Selective Attention

The process by which a person focuses on one or a few sensory inputs while ignoring other stimuli.

Perceptual Set

A tendency to perceive or notice some aspects of the available sensory data and ignore others, influenced by expectations, emotions, and culture.

Expectancy Effect

The phenomenon where a researcher's expectations influence the outcome of a study.

Müller-Lyer Effect

A visual illusion in which two lines of the same length appear to be of different lengths due to the orientation of arrow-like figures at their ends.