Which Pair Demonstrates a Mutualistic Relationship

Question

Which pair demonstrates a mutualistic relationship?
A) Orchid and its host
B) Rhizobia and strawberry plants
C) Soil fungus and soil bacteria
D) Mistletoe and its host
E) Mychorrhizae and roots

Accepted Answer

Mycorrhizae and roots demonstrate a mutualistic relationship where both organisms benefit; the fungus aids the plant in nutrient absorption, and the plant provides the fungus with carbohydrates.