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 significantlyALower in presence of another superior speciesBHigher in presence of another superior speciesCEqual in presence of another superior speciesDEqual in presence of their own species

Explain why competition occurs between organisms of different species as well as between organisms of the same species.

Identify and describe two possible impacts of competition on the abundance of species

Competition between two populations in an ecosystem is

Statements I. Recent studies support competition as suggested in ‘Gauses’s Competitive Exclusion Principle’ II. Gause’s hypothesis says if two species compete for same resources then one will be eliminated by another species III. More recent studies point out that species facing competition might evolve mechanisms that promote co-existence rather than exclusion IV. Gause’s competitive exclusion principle is effective when resources are in excess V. Unlimited resources give better opportunity for adaptation Choose the correct combination of statements

Members of the same species fighting for food is a form of:1 pointintraspecific competitioninterspecific competitionzero population growthpredation