A type of green algae grows on a type of fungus in the natural in the state of mutualism. Explain the relationship between these organisms.

Mutualism is a close interaction within ecology, from which both organisms have a certain advantage. Mutualism is usually not necessary for the organisms, and the relationship is often short-lived. An example is the cohacks (birds), which occasionally use larger ruminants as a pantry. Both parties benefit from the birds eating parasites in the ruminant's skin, but they are not dependent on it.

cell regulation is conducted by special proteins.

not sure if this what   you'r looking for would be percent composition