what role do bacteria and other tiny organisms have in making sure that nutrients are always available in ecosystems

Answer :

Bacteria and other small organisms within an ecosystem play an important role in maintaining homeostasis of an ecosystem while also helping to break down dead materials. These small organism play a vital role in decomposing of dead plant and animal matter that then becomes nutrients for the ecosystem in the future provide fertile soil for new plant life to grow supporting the cycle of life in an ecosystem. 

Answer and explanation:

Bacteria and microorganisms play an important role in the nutrients cycle. Land and water ecosystems depend on the activity of microorganisms since the cycling of nutrients like carbon, nitrogen, and sulfur is performed by microorganisms constant labor and without them, the nutrients cycling and other functions in the ecosystem would be impossible.

Microorganisms are vital in the biogeochemical cycle of the elements essential for life. In this cycle, nutrients like the mentioned above, move through the ecosystem, allowing many forms of matter pass from one organism to another organism. This cycle ensures the constant supply of essential nutrients for plant crop and growth, the degradation of organic matter, the maintenance of soil quality/structure and the carbon losses to the atmosphere.