biological heritage(The inheritance and preservation of the earth's or a particular region's balanced, integrated functionality as a natural habitat, with special concern for the water resources necessary to maintain the ecosystem)
biological monitoring(The direct measurement of changes in the biological status of a habitat, based on evaluations of the number and distribution of individuals or species before and after a change)
biological pest control(Any living organism applied to or introduced into the environment that is intended to function as a pesticide against another organism declared to be a pest)