Answer the following question given this paragraph: 

A mycorrhiza (Greek for "fungus roots") is a symbiotic association between a fungus and the roots of a plant. In a mycorrhizal association, the fungus may colonize the roots of a host plant by either growing directly into the root cells, or by growing around the root cells. This association provides the fungus with relatively constant and direct access to glucose, which the plant produces by photosynthesis. The mycelia of the fungi increase the surface area of the plant’s root system. The larger surface area improves water and mineral nutrient absorption from the soil.


Q: A mycorrhiza refers to what kind of relationship between a fungus and the roots of a plant?

 Choices:

- predator-prey

- semantic

- familial

- symbiotic

A:
symbiotic
