Soils are home for a wide variety of organisms such as worms and other tiny animals such as insects, arthropods (like spiders and millipedes). there are also organisms such as fungi and bacteria. collectively these organisms serve two very important services to/in the soil. what are these services?

The organisms break down and decompose dead material that are found in the soil. Therefore they provide nutrients that benefit trees and plants. Organisms like the worms and millipedes turn the soil as the move through it. This ensures that the soil is well ventilated with enough air to be used by plants.

Our eyes can trick our brain in some manner. When the eye see an image, our brain assumes that the image being seen is a image which had been seen in the past. Therefore, our brain is tricked into believing that the image which is being seen is of something which has been visualized before whereas in actual it is a new image. Hence, this is the relationship between seeing of the eyes and perceiving of the brain.