The two parts of the eye that refract light are the ______________.
A. eyelid and eyebrow
B. eyelid and lens
C. cornea and retina
D. cornea and lens
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Other quiz: Ecology
Extinction can occur because of which of the following?
A. All can be causes of extinction.
B. Increased competition with other species
C. New predators within the environment
D. Loss of habitat and/or catastrophes