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
식물의 장란기는 생식 세포를 형성하는 중요한 구조입니다.sigmul-ui jangrangi-neun saengsik sepo-reul hyeongseonghaneun jungyohan gujo-imnida.The archegonium of the plant is an important structure that forms reproductive cells.