The Iris Is the

question 105

Multiple Choice

The iris is the

• A)clear membrane just in front of the cornea through which light first passes.
• B)colored part of the eye that contains muscles that control the size of the pupil.
• C)white outer part of the eye that helps to maintain the shape of the eye and to protect it from injury.
• D)light-sensitive surface at the back of the eye that records what we see and converts it to neural impulses for processing in the brain.

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Definitions:

Liver Cells

Liver cells, also known as hepatocytes, are the main cell type found in the liver, performing various functions including detoxification, protein synthesis, and the production of biochemicals necessary for digestion.

Muscle Cells

Muscle cells, also known as muscle fibers, are the cells that make up muscle tissue, enabling movement through contraction and relaxation.

Ultimate Source

The final or primary source from which something originates or can be traced.

Living Organisms

Entities that display the characteristics of life, including the ability to grow, reproduce, carry out metabolic processes, and respond to their environment.