Question

Assertion: the mould penicillium secretes penicillin which kills bacteria in the medium but the mould is unaffected.
Reason : Amensalism is referred to as the interaction between two different species,in which one species is harmed and the other neither benefitted nor harmed.​​

Answer 1

Explanation:

Amensalism, association between organisms of two different species in which one is inhibited or destroyed and the other is unaffected. There are two basic modes: competition (q.v.), in which a larger or stronger organism excludes a smaller or weaker one from living space or deprives it of food, and antibiosis, in which one organism is unaffected but the other is damaged or killed by a chemical secretion.