Question

A knob like structure on the top of the stems of a bread mould. __________________​

Answer 1

Explanation:

knob like structures in the stem of moulda are sporangia

Answer 2

The common bread mould plant consists of fine, thread-like projections called hyphae and thin stems having knob-like structures called sporangia at the top. ... These spores are the asexual reproductive bodies of bread mould plant which can produce more bread mould plants under suitable conditions.

If this helps you then please mark me as brainiliest.