Question

Mycorrhiza exhibits the phenomenon of ?

Answer 1

Hint: mycorrhiza is an association that helps the fungus to grow by taking the food (glucose) from the green plants and the fungus in turn helps them to get rid of pathogens and give them shelter to live in as well as it provides all the essential nutrients and water too.

Complete answer:
Mycorrhiza is a symbiotic association that help the fungus to grow by taking the food from the green (higher) plants with the process of photosynthesis and the fungus in turn helps them to get rid of pathogens, bacteria, provide water and nutrients and gives shelter as well to the green plants. The most widely distributed fungi are endo and ecto mycorrhizae but there are other types of fungus too that participate in the symbiotic association like monotropoid, ectendo, ericoid.
The mycorrhiza is a symbiotic relationship that exhibits the phenomenon of mutualism or symbiosis. Mutualism is understood simply by its name; it states that when two organisms get benefitted by each other is termed as a relationship. It is a relationship between two different species and both require each other so as to get the profit. It can be of long term or short term.

So, the mycorrhiza is a mutualism interaction between higher Plantae and fungi in which both are benefitted.

Note:
the mutualism interaction can be of various types, obligate mutualism in which organism are completely depended on each other, facultative mutualism is one can live without each other and can use any other species, and the other ones are trophic, defensive and dispersive mutualism.