Why are bacteria considered saprotrophs as orderlies of nature?

1) Because saprotroph bacteria convert dead organisms to inorganic substances. Saprophytic bacteria make up a group of destroyers.
2) They close the cycle of substances in nature.
3) Participate in the formation of humus.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.