Compare and Contrast Simple, Compound, and Vertebrate Eyes

question 19

Essay

Compare and contrast simple, compound, and vertebrate eyes.

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Definitions:

Parasympathetic Nervous System

Part of the autonomic nervous system responsible for conserving energy as it slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles in the gastrointestinal tract.

Sympathetic Nervous System

A division of the autonomic nervous system that controls the body's responses to perceived threats by activating the fight-or-flight response.

Parasympathetic

The part of the autonomic nervous system responsible for rest and digestion, counterbalancing the sympathetic system.

Nervous System

The part of an animal's body that coordinates its actions and transmits signals to and from different parts of its body, including the brain, spinal cord, and nerves.