Evidence Suggests That Viruses Evolved Only After the Evolution of Cells

question 6

True/False

Evidence suggests that viruses evolved only after the evolution of cells.

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Definitions:

Eyeblink Conditioning

When a conditioned stimulus (CS) becomes able to elicit a conditioned eyeblink as a result of being paired with a puff of air or a brief electrical shock below the eye.

Extinction Procedure

A process in conditioning where a conditioned response decreases in frequency and eventually disappears when the conditioned stimulus is presented without the unconditioned stimulus.

Conditioned Stimulus

A stimulus that was once neutral becomes capable of triggering a conditioned response after being paired with an unconditioned stimulus.

Experimental Chamber

is a controlled environment used in behavioral research to study the responses of subjects under specific conditions.