Question

Define & Give exapmles
-Commensalism
-Mutualism
-Parasitism

Answer 1

-Commensalism - Relationship in which one species takes benefits from other without causing any damage or benefit either. Benefit can be trophic, for example, carrion birds feed from the rests left by predators. Also, romora fishes who attach to bigger fishes' sufaces to be transportated without making any effort.
-Mutualism - Relationship that allows growth and survival of the two affected populations. Exchange is trophic and sometimes obligated symbiosis. An example to non-obligated mutualism is deworming between two individuals of the same species. An example to obligated mutualism is lichens and protozoa, who live inside termits digestive system.
-Parasitism - Interspecific relationship, given when a resider lives at the cost of the nutrtive material of the host. For example - Mistletoe parasitizes some species of pine and oak. Its roots penetrate to the branches and take crude sap.