Question

Why does a cockroach have mosaic vision?

• A. Presence of simple eyes
• B. Presence of antennae
• C. Presence of ommatidia
• D. All of the above

Answer 1

The correct option is C Presence of ommatidia

Cockroach has many sense organs including antennae, eyes, etc. The eyes in cockroaches are located at the dorsal surface of head which are termed as compound eyes. Every eye has almost 2000 hexagonal ommatidia with which they can receive multiple images of an object at once. This is called mosaic vision. Though this type of vision has higher sensitivity, the resolution is low.