Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
생태학은 생물과 환경의 상호작용을 연구하는 학문입니다.saengtaehak-eun saengmul-gwa hwan-gyeong-ui sanghojag-yong-eul yeongu-haneun hakmun-imnida.Ecology is the study of the interactions between organisms and their environment.