(a) Define the following terms :(i) Commensalism.
(ii) Brood parasitism.
(iii) Mutualism

Explanation

(ii) brood parasitism . parasitism in birds is a fascinatting example of parasitism in which the parasitic birds lays its eggs in the nest of its host and lets the host incubate them . During the course of evolution , the eggs of the parasitic bird have evoved to resemble the host.s bird detecting the foreign eggs and ejecting them from the nest e.g. cuckoo lays eggs in the of crow.
(iii)Mutualism . It is an interaction or relationship between two organism of different species where both the partners are benifitted with none of the two capable of living separately .
Natality Mortality , Immigration and Emigration .