question_answer 22)

  Ecological niche is (a) the surface area of the ocean (b) an ecologically adapted zone (c) the physical position and functional role of a species within the community (d) formed of all plants and animals living at the bottom of a lake

Answer:

                  (c) Ecological niche is ecologically adapted zone, i.e., the specific place of habitat occupied by 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. Rest of the options are incorrect.