The Prefix Re- Means

question 262

Multiple Choice

The prefix re- means:

• A)again and again.
• B)many; much.
• C)reversal of; without.
• D)across; through.

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Definitions:

Constant Stimuli

A method in psychophysics used to measure the threshold at which a stimulus is detected by changing the intensity of the stimulus in constant increments or decrements.

Pupil

The opening in the center of the iris of the eye, through which light enters the eye to reach the retina.

Electromagnetic Energy

A form of energy that is propagated through space or matter, comprising electric and magnetic field components oscillating in phase and perpendicular to each other.

Optic Nerve

A cranial nerve that transmits visual information from the retina to the brain.