A culture medium is defined as an artificially prepared growth medium. This medium has various nutrients, chemicals, growth regulators, food supplements that are needed for the proper growth and nourishment of the growing cell/organism.
Soil is a naturally occurring medium that has all the minerals, nutrients, decomposers, water and all the things required for the growth of organisms.
Hence, culture medium has almost the same function as soil and can be referred to as highly enriched laboratory soil.
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