Why are mushrooms important to the food chain?
a. they recycle nutrients into the ecosystem.
b. they produce food energy for other living things.
c. they recycle oxygen into the atmosphere.
d. they consume excess herbivores in the ecosystem.

A. They recycle nutrients into the ecosystem.

Mushrooms are the decomposers which feed upon dead and decaying matter and return essential nutrients to the soil. This is called as nutrient recycling. They come in the phylum Fungi. In the absence of fungi, nutrients will not be recycled leading to the collapse of entire food chain.

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation:

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