Animal Kingdom Question 93
93. Photoreceptors of earthworm occur on [1989]
(a) clitellum
(b) many eyes
(c) dorsal surface
(d) lateral sides
(a) useful
(b) harmful
(c) more useful than harmful
(d) more harmful
Show Answer
Answer : c
Hints & Solutions
(c) Light receptors are found in diffused condition to differentiate between light and dark. These receptors are present on the dorsal surface.
