★ Eye in Color Vision Quiz
How does the brain contribute to color perception?
A. By physically altering the colors we see
B. By processing signals from the cones and interpreting them
C. By changing the shape of the retina
D. By controlling the amount of light entering the eyes
Select your answer:
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A. requires a transmembrane protein
B. requires ATP
C. can move molecules against a concentration gradient
D. is typically used to transport small nonpolar molecules
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The spinal cord is protected by the _____?
A. vertebrae
B. skull
C. lungs
D. rib cage