Answer:
not 100% sure but
Explanation:
might be because each fruit fly has a different eye color because offspring from parents will have different eye color. or it might be from some sort of mutation that happened, that might be why they still have the gene to orange eyes. or red eyed fruit flys(or fly) migrated into a orange eyed populating and had offspring like that, that would also explain why red eyed fruit flys have the orange eyed gene.
again not 100% sure
but I hoped it helped a little
The answer is a generalist, able to be flexible in major dimensions of its niche. In addition, as coyotes extended their variety they also extended their set menu. As soon as omnivores restricted by the grassland fauna of rabbits, mice, and insects they now resourcefully consume the whole thing from small mammals and birds to livestock and animals, bounties and vegetables, meat and trash. Their environment has also extended to contain a collection of natural and social altered environments as well as the woodlands, the savannahs and the swamplands, the parks and the golf courses, the suburban backyards, and the urban expansions.
They form when lava cools above the earths rocks. Hope I helped and You're Welcome.