what are two primary decomposers

fungi and........

It would depend on what is decomposing.

See these sites:

http://www.google.com/search?hl=en&source=hp&ie=ISO-8859-1&q=two+primary+decomposers&btnG=Google+Search

fungi and bacteria are the two largest groups of primary bacteria.

In this organelle, carbon dioxide and water are converted to _________ and oxygen

so do u guys no the answer?

carbon dioxide and water are converted to _________ and oxygen.

Two primary decomposers are bacteria and fungi.