Figure 31.1 below depicts the outline of a large fairy ring that has appeared overnight in an open meadow, as viewed from above. The fairy ring represents the furthest advance of this mycelium through the soil. Locations A-D are all 0.5 meters below the soil surface. Responses may be used once, more than once, or not at all.

-The symbiotic associations involving roots and soil fungi are considered

Question

Figure 31.1 below depicts the outline of a large fairy ring that has appeared overnight in an open meadow, as viewed from above. The fairy ring represents the furthest advance of this mycelium through the soil. Locations A-D are all 0.5 meters below the soil surface. Responses may be used once, more than once, or not at all.

-The symbiotic associations involving roots and soil fungi are considered

Quizplus · Accepted Answer

The symbiotic association between roots and soil fungi is known as mycorrhizae and is considered mutualistic. The plant provides the fungus with carbohydrates while the fungus helps the plant absorb nutrients from the soil, improving the plant's growth and survival. There is no indication in the question that the relationship is parasitic, commensal, or harmful to the plant partner, and it is not related to the formation of soil.

Figure 311 Below Depicts the Outline of a Large Fairy Ring