A more or less circular ring of mushrooms appears in your yard, apparently overnight. The circle is several yards in diameter. The most likely explanation for this circle of mushrooms is that:
A) the mushrooms are all part of the same plant, with mycelia radiating out from the location of a germinated spore.
B) a circle is nature's most perfect shape for asexual reproduction structures.
C) one mushroom in the circle reproduced sexually to make all the other mushrooms in the circle.
D) the mushroom plants in the center of the circle have been eaten by herbivores.

Question

Quizplus · Accepted Answer

The circle of mushrooms, often called a "fairy ring," is most likely the result of a single fungal organism spreading its mycelium outward from a central point where the spore germinated. As the fungus grows, it exhausts nutrients in the center, leading to the characteristic ring shape as mushrooms (the fruiting bodies of the fungus) appear at the outer edge where nutrients are still available.

A More or Less Circular Ring of Mushrooms Appears in Your