simple and compound eyes in arthopoda what it mean
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Answer:
Arthropods possess simple as well as compound eyes; the latter evolved in Arthropods and are found in no other group of animals. Insects that possess both types of eyes are considered to be the most successful animals on earth.
VISION IN CRUSTACEA (Prawn) – The Compound Eye
Crustacea includes prawns, crabs, lobsters, shrimps, barnacles, water fleas etc., which possess a pair of compound eyes for vision.
Prawn possesses a pair of large stalked hemispherical eyes on the anterior side of cephalothorax below the rostrum. Each eye is composed of a large number of independent visual units called ommatidia which are connected to the optic nerve. An ommatidium is divisible into the outer dioptrical region for receiving and focusing light rays and the inner sensory region for perceiving light and sending the nerve impulse to the brain, which analyses the impulses as image of the object.
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