19. What are compound eyes?

Gap-fill exercise

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Arthropods have compound made
of several units called ommatidia.
ommatidium transmits visual
through the optic to
the brain, interprets the image.
they are round numerous,
these ommatidia, external
surfaces point different directions
creating images, cause
arthropod have a large field,
larger than visual field of
. Some insects have or
more simple besides their pair
compound eyes.