L What is the beneficial role of fungi in the food web?
a) Fungi are the primary producer in the ecosystem thus providing energy for
trees.
b) Fungi regenerates lost soil due to erosion and thus makes trees stand firm.
c) Fungi decompose dead matter and help trees in absorption of soil nutrients.
d) Fungi can be parasitic thus killing all insects making the soil better.

C) Fungi decompose dead matter and help trees in absorption of soil nutrients

Explanation:

In food chains, fungi act as decomposers, also called saprotrophs, which recycle nutrients in an ecosystem. ... They also break down surface waste and release nitrogen back into the soil in the form of ammonium nitrate, a nutrient that plants need for survival.

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the correct option is option d