The ____ of the eye focuses light on the eye's photoreceptors. In the above diagram of the eye, which letter identifies
it?
a. retina; C
b. lens; B
c. lens; A
d. fovea; D
e. retina; B
ANSWER: b
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If the right optic nerve were cut, what would still remain?
a. the inner portion of the left visual field and the outer portion of the right visual field b. the outer portion of the right visual field and the inner portion of the left visual field c. the inner portion of the right visual field and the inner portion of the left visual field d. the inner portion of the right visual field and the outer portion of the left visual field e. the entire right visual field
What is the nature of the genetic mutation that causes lactose intolerance?
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