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.
Planarians are free-living flatworms and form the class Turbellarians in the Phylum Platyhelminthes. The Other two classes of flatworms are parasitic (flukes and tape worms). Flatworms have three tissue layers, ectoderm, mesoderm, and endoderm. These tissues are organized into organs and organ systems. Thus, flatworms are the simplest animals with mesodermic layers and organ-system levels of organization.