Mots Croisés Ecology UnitVersion en ligne Ecology Unit par Christie Reed 1 number of species living within an ecosystem 2 regular progression of species replacement 3 the many different species that live together in a habitat 4 a community and all of the physical aspects of its habitat 5 place where a particular population of a species lives 6 Study of interactions of living organisms with one another and with their physical environment 7 the physical aspects of a habitat 8 the living organisms of a habitat 4 3 2 6 5 7 8