This is an interaction in which one species benefits and the other species is neither harmed nor benefited.

Even a plant species,which makes its own food,cannot survive alone; it needs soil microbes to breakdown the $A$ matter in soil and return the $B$ nutrients for absorption. And then,how will the plant manage pollination without an animal agent? It is obvious that in nature,animals,plants and microbes cannot live in $C$ but interact in various ways to form a biological community. Choose the correct option for $A, B$ and $C$.

Select the correct statement for parasitism.

The interaction observed in this diagram is

What is the term for an interaction where both organisms benefit and are essential for each other's survival?

$A$ parasite that lives on another parasite is called: