The taxonomic system is a way to

A. demonstrate the relationship between microbes and disease.
B. demonstrate spontaneous generation.
C. classify organisms based on similarities.
D. identify chemicals which may be toxic to microbes.
E. study disease in human populations

C. classify organisms based on similarities.

Explanation:

Taxonomic system was introduced by Carl Linnaeus and branch of science which deals with the classification of organisms is known as taxonomy.

Organisms are distributed according to their similarities and differences.The more basic the distribution level the more similar would be the organisms in it. Various level of distribution are Species, genus, family, order, class, phylum and kingdom.Species would contain the most similar organisms in it.

This is what i found on google “phytoplankton, tiny organisms that live in the ocean, are autotrophs. some types of bacteria are autotrophs. most autotrophs use a process called photosynthesis to make their food.” i hope this you for what your looking for