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timmmmy timmmmy
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6 years ago
The world perceived by Matteo is very different than the world perceived by most; he can only see black, white, or shades of gray. What can we conclude about Matteo?
 
  a. His retina is void of at least one type of rod.
  b. His retina is void of at least two types of rods.
  c. His retina is void of at least one type of cone.
  d. His retina is void of at least two types of cones.
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wrote...
6 years ago
ANSWER:
d
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