Color blindness is most often a genetic disorder, but it can be acquired due to illness, eye/brain/nerve damage, or chemicals. People with this condition tend to see a limited â¦ range of colors; a rare few may not see colors at all. The eye is very much like a film camera.ifferent disorders can affect your vision differently. Normally, a person would be able to see all the colors of the rainbow, but with different forms of color-blindness, â¦ the person can only see greenish-yellowish colors, or just pink, red, and blue.
There are thousands of different caterpillars and similar in the world, and many of them are garden ravagers â darn them. Common caterpillars that we find are the cabbage worm and cabbage looper which eats holes in many vegetables, including brassicas (cabbage, broccoli, Brussels sprouts, kale etc), tomatoes, spuds, and cucumbers. It's the pretty butterflies and plain looking moths that flutter around and lay eggs that are the culprits.
The small white flatworms found in aquariums are planaria. Fish  that eat these small worms include angel fish, Betta fish, mollies,  guppies, common blowfish, and goldfish.