Chitin is present in the cell wall of which of the following?

Assertion $(A)$: Fungi are either parasitic or saprophytic.
Reason $(R)$: Some fungi obtain nutrients from living organisms,while others obtain them from decaying organic matter.

Haustoria are found in

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.

$Saccharomyces$ $cerevisiae$ is:

Which of the following statements is consistent with the Kingdom Fungi?