Answer:
A. Salivation at the sound of a bell
Explanation:
It is correct on PLATO
These mushrooms and other fungi will be classified as decomposers and they will obtain their nutrition by breaking down the body of organisms that have died. These organisms play a vital role in the cycling of nutrients in a food chain, since they convert the macromolecules present in dead organisms into smaller ones and release them back into the environment.
Theories explain phenomena, whilst laws are generalizations which characterize them.
Biochemical- apart of the second defense system
