An Experiment Is Designed to Test a Prediction About a Cause-Effect

question 89

Short Answer

An experiment is designed to test a prediction about a cause-effect relationship between two or more variables. This prediction is called a _____.

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Definitions:

Xerophthalmia

A medical condition characterized by dry eyes due to a lack of vitamin A, which can lead to vision problems.

Orthoptics

A branch of ophthalmology dealing with the diagnosis and treatment of defective vision and the management of eye movement disorders.

Lens

A piece of glass or other transparent material with curved sides for concentrating or dispersing light rays, used in glasses and cameras.

Rhodopsin

A pigment found in the rods of the retina that is responsible for the first step in the perception of light.