EVERYDAY SCIENCE

Detailed explanation-1: -In interspecific competition, members of two different species use the same limited resource and therefore compete for it. Competition negatively affects both participants (-/-interaction), as either species would have higher survival and reproduction if the other was absent.

Detailed explanation-2: -Commensalism. In a commensalism, two species have a long-term interaction that is beneficial to one and has no positive or negative effect on the other (+/0 interaction).

Detailed explanation-3: -Competition is the relationship between two species (or individuals) in which both species (or individuals) attempt to use the same limited resource such that both are negatively affected by the relationship.

Detailed explanation-4: -Competition is most typically considered the interaction of individuals that vie for a common resource that is in limited supply, but more generally can be defined as the direct or indirect interaction of organisms that leads to a change in fitness when the organisms share the same resource.

Detailed explanation-5: -Mutualism is defined as an interaction between individuals of different species that results in positive (beneficial) effects on per capita reproduction and/or survival of the interacting populations.