List 2 ways the ecosystem would be negatively impacted if decomposing didn’t exist

While organisms use up the nutrients in the soil, no nutrients will go back in. Producers will no longer grow which means other consumers cannot survive

please give a brainist answer!

organisms that lack symmetry are called asymmetrical and belong to phylum porifera/sponges.

organisms with specialized stinging cells belong to phylum cnidaria. stinging cells are called cnidoblast cells.

cnidarians show two morphological forms : polyp (sessile) and medusa (mobile)

filter feeding is observed in porifera members.  

alternation of generation is observed in coelenterata or cnidaria. there is alternation of asexual polyp form and sexual medusoid form. it is also referred as metagenesis.