Question at position 13 Which of the followings statements is true of the rods in the eye's retina?They are insensitive to light.They are very useful for color vision.They are found in the fovea.They require a smaller amount of light to respond than the cones do.单项选择题

A

They are insensitive to light.

B

They are very useful for color vision.

C

They are found in the fovea.

D

They require a smaller amount of light to respond than the cones do.

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Question at position 34 Which of the following statements is true of the cones of the eye's retina?They are used for color perception.They give us the ability to detect fainter spots of light on the peripheral retina than at the fovea.They require a smaller amount of light to respond than the rods do.They convert electrochemical impulses into light.

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