I think they eat other bugs
The bent or kinked form of retinal is combined with a protein called opsin.
Hope I helped!
An atom.
Mark brainliest?
<h2>HOPE THIS HELPS!</h2>
Endocrine glands are glands of the endocrine system that secrete their products, hormones, directly into the blood rather than through a duct. The major glands of the endocrine system include the pineal gland, pituitary gland, pancreas, ovaries, testes, thyroid gland, parathyroid gland, hypothalamus and adrenal glands.