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Question

Basic unit in the eye of cockroach or insect is

A
Retina
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B
Rhabdome
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C
Corneal facet
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D
Ommatidium
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Solution

The correct option is D Ommatidium
  • The compound eyes of arthropods like cockroaches are composed of units called ommatidia.
  • An ommatidium contains a cluster of photoreceptor cells surrounded by support cells and pigment cells, which form several images combined to form a complete vision.
  • This kind of vision is known as mosaic vision.

Therefore, the correct answer is option D.

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