How many ascospores are generally produced in an ascus?

What does the term $Basidiocarp$ refer to?

Which of the following is characterized by a lack of tissue-level organization?

The sex organs are absent,but plasmogamy is brought about by the fusion of two vegetative or somatic cells of different genotypes. This is a characteristic feature of:

Assertion $(A)$: Yeast is included in the multicellular decomposer kingdom.
Reason $(R)$: Fungi exhibit parasitic or saprophytic nutrition.

Identify the structures shown below.