What is the mycelium composed of?

There is a myth that immediately after heavy rains in forests, mushrooms appear in large numbers and form a very large ring or circle, which may be several metres in diameter. These are called as "fairy rings". Can you explain this phenomenon of fairy rings in biological terms? Discuss the mycelial structure in $Agaricus$ and its soil-borne nature.

Fungal hyphae are able to penetrate the host with the help of

Mucor is classified under which of the following fungal classes?

What are Club fungi?

Which of the following organisms has a cell wall composed of chitin?