the physical position and functional role of a species within the community
4.
formed of all plants and animals living at the bottom of a lake
(c) Ecological niche is an ecologically adapted zone, ie., the specific place of habitat occupied by the individual of a species. It in turn is determined by factors such as by its range of tolerance. i.e., the physical position and functional role of a species within the community, etc. Hest of the options is incorrect.
