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Valvarez Valvarez
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6 years ago
The primate retina
 
  a. contains four photopigments.
  b. contains five photopigments.
  c. has one type of cone and three types of rods.
  d. uses rods to make fine acuity distinctions.
  e. is composed of alternating layers of rods and cones.
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haleyhaley
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6 years ago
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