Which of the following are two types of symbiotic relationships commonly found in plant roots?

Define mutualism: In mutualism, both organisms involved benefit from the relationship. For example, in plant roots, mutualism can occur between plants and mycorrhizal fungi, where the fungi help the plant absorb nutrients, and the plant provides carbohydrates to the fungi.

Define commensalism: In commensalism, one organism benefits while the other is neither helped nor harmed. An example in plant roots could be certain bacteria that live on the roots and benefit from the environment without affecting the plant.