Multiple Choice
Encharta is sitting outside,looking at her beautiful garden.As the sun goes down,the colors become less bright and finally all become shades of gray.This change happens because the:
A) amount of photopigment is decreasing
B) amount of photopigment is increasing
C) cones are taking over for the rods
D) rods are taking over for the cones
Correct Answer:

Verified
Correct Answer:
Verified
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