Shivering in Response to a Cold Draft Is an Example

question 33

Multiple Choice

Shivering in response to a cold draft is an example of

• A) A homeostatic mechanism
• B) Negative feedback
• C) A physiological reflex
• D) Thermoregulation
• E) All of the choices are correct

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Definitions:

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.

Rods

Photoreceptor cells in the retina of the eye that are sensitive to low light and contribute to night vision.

Cones

Photoreceptor cells in the retina of the eye that function best in relatively bright light and enable color vision.