Question

what is the important role do they play in an organism​

Answer 1

Answer:

Many elements are benign, meaning that they generally neither help nor harm organisms, but may be bioaccumulated...

I hope you understand....

Answer 2

Fungi provide a vital role in releasing scarce, yet biologically-essential elements, such as nitrogen and phosphorus, from decaying matter. Their mode of nutrition, which involves digestion before ingestion, allows fungi to degrade many large and insoluble molecules that would otherwise remain trapped in a habitat.