Question

Plants require nitrogen and phosphorus but cannot efficiently absorb these nutrients from the soil. instead, they obtain the nutrients through fungi that live in their roots. in return, the fungi have access to carbohydrates manufactured by the plants. without the fungi, plants would not be healthy and abundant, and the food supply of all of the organisms in the ecosystem would be in danger. this is an example of how _______ relationships maintain balance within an ecosystem.

Answer 1

This is a symbiotic relationship, where both the partners, fungi, and plants are mutually benefitted by exchange of nutrients and none of them is being harmed by other's presence. It is a mutual cooperation and helps both organisms in survival and nutrition. 

Answer 2

it is just symbotic