Rats Are More Likely to Form a Smell-Sickness Association Than

question 130

Multiple Choice

Rats are more likely to form a smell-sickness association than a light-sickness association, demonstrating that rats have:

• A)rats have poor eyesight because they evolved under low-light conditions.
• B)rats have evolved to not associate lights with smell.
• C)learned some associations more easily than others because of natural selection.
• D)rats have evolved to easily associate sickness with any stimulus in their environment.

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Definitions:

Reduced Virulence

A decrease in the ability of a pathogen to cause disease, often as a result of evolutionary pressures or host-pathogen interactions.

Serial Passage

A method used in microbiology and virology involving the sequential transfer of a sample containing viruses or bacteria from one culture medium to another to study the evolution of the pathogen.

Jumped

In a biological context, often used metaphorically to describe a sudden change or rapid evolution in a species or genetic material.

Species

A fundamental category in biological classification, defined as a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.