個こ体たい群ぐん生せい態たい学がくこたいぐんせいたいがくじ字FuriganaMeanings1nounpopulation ecologyAcademic term for the study of how populations of organisms interact with their environment and change over time.個こ体たい群ぐん生せい態たい学がくは、生せい物ぶつの個こ体たい数すう変へん動どうを分ぶん