An Ecosystem Contains

question 31

Multiple Choice

An ecosystem contains

• A) only the biotic components of the local environment.
• B) only the abiotic components of the local environment.
• C) only the energy flow components of an local environment.
• D) both the biotic and the abiotic components of the local environment.
• E) only the food relationships found in the local environment.

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Definitions:

Rods

Photoreceptor cells in the retina of the eye that are responsible for vision at low light levels and do not perceive color.

Cones

Photoreceptor cells in the retina of the eye responsible for color vision and functioning best in bright light conditions.

Retina

The light-sensitive layer of tissue at the back of the inner eye that converts light into neural signals sent to the brain.

Rods

Photoreceptor cells in the retina responsible for vision at low light levels, but not for color vision.