Mutualism-

Mutualism is the way two organisms of different species biologically interact in a relationship in which each individual derives a fitness benefit. Similar interactions within a species are known as co-operation. Mutualism can be contrasted with interspecific competition, in which each species experiences reduced fitness, and expliotation, or parasitism, in which one species benefits at the expense of the other.
external image Mutualism-bee-flower.jpg


external image image005.jpg