If the strong partner is benefitted and the weak partner is damaged,it is known as

An association of two species where both the partners derive mutual benefit from each other is known as:

Which one of the following shows interspecific competition?

When one organism is benefitted without affecting the other,it is called:

Choose the incorrect pair.

Competition is best defined as a process in which the fitness of one species (measured in terms of its '$r$',the intrinsic rate of increase) is significantly: