Mention speial features of eye in cockroch Dicuss compound eye in arthopods and mention its mention its structural features .

Explanation

the eyes in cockroach area large sessile paired bean - shaped and present on either side of head these are compound in antiure Each compound eye consists of a large number of visual elements called ommatidia .
Each ommatidium is composed of a dioteric region and reticular (receptor ) region it is capable of producing a separate iage of a small part of object seen .
thus the image of the object viewed consists of several pices and hence known as mosaic image from the immer end of each ommatiodium fine nerve fibres arise all of which commbine to from one optic nerve connected to the brain .