Q. Ommatidia serve the purpose of photoreception in

 2424  239 BHUBHU 2012Structural Organisation in Animals Report Error

Solution:

In cockroach, a large, sessile, bean-shaped compound eyes are present on either side of the head. Each eye is divided into 200 hexagonal areas called facets. Below the facet lie series of visual units called ommatidia. Ommatidia serve the purpose of photoreception.