Animal KingdomHard
Question
Photoreceptors of earthworm occur on
Options
A.clitellum
B.many eyes
C.dorsal surface
D.lateral sides
Solution
Photoreceptors (with L-shaped lens or optic organelles) are present on the surface of skin on dorsal side. Earthworm has no eye, photoreceptors are used to judge intensity and duration of light, but do not have the capacity of vision.
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