
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Crash Course Ecology - Season 1 Episode 9
Hank describes the desperate need many organisms have for nutrients (specifically nitrogen and phosphorus) and how they go about getting them via the nitrogen and phosphorus cycles.
- Năm: 2013
- Quốc gia: United States of America
- Thể loại: Documentary
- Studio: YouTube
- Từ khóa: ecology
- Giám đốc:
- Diễn viên: Hank Green