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Primærproducenter

En primærproducent er en organisme i bunden af fødekæden, som er ansvarlig for at danne organiske forbindelser fra kuldioxid (CO2) gennem fotosyntese. I terrestriske øko-regioner (store enheder af jord eller vand med særskilte miljøforhold) er disse hovedsaglige planter, derimod er alger fremherskende i denne rolle i akvatiske øko-regioner.

Næsten alt liv på jorden er afhængig af den primære produktion. De organismer, der er ansvarlige for den primære produktion er kendt som primærproducenter eller autotrofe, og danner bunden af fødekæden.

NASA

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