Ommatidia are light-focusing elements found in insects and crustaceans that have:
A)eyecups.
B)compound eyes.
C)single-lens eyes.
D)heat-seeking photoreceptors.

Question

Quizplus · Accepted Answer

Ommatidia are found in compound eyes, which are the characteristic eyes of most insects and crustaceans. Each ommatidium consists of a lens, a crystalline cone, and a cluster of photoreceptor cells. Together, the ommatidia allow these animals to see a wide field of view and detect motion. The other choices are incorrect because eyecups and single-lens eyes are not associated with ommatidia, and heat-seeking photoreceptors are not a type of eye element.

Ommatidia Are Light-Focusing Elements Found in Insects and Crustaceans That