Question : Arthropod eyes are called compound eyes because they are made up of repeating units, the ommatidia, each of which functions as a separate visual receptor. What is the difference between compound eyes and simple eyes? Why is mosaic vision with less resolution soon in cockroach?

Question : Arthropod eyes are called compound eyes because they are ma

1.	Question : Arthropod eyes are called compound eyes because they are made up of repeating units, the ommatidia, each of which functions as a separate visual receptor. What is the difference between compound eyes and simple eyes? Why is mosaic vision with less resolution soon in cockroach?
Answer» Solution : If an EYE is made of many EYES, it is a compound eye. It has many visual receptors UNLIKE a simple eye which has only one visual receptor. The photoreceptors of the cockroach consists of a pair of compound eyes at the dorsal surface of the HEAD. Each eye is formed of about 2000 simple eyes called the ommatidia (singular: OMMATIDIUM), through which the cockroach can receive several images of an object. This kind of vision is known as mosaic vision with more sensitivity but less resolution.