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Planteplankton

Planteplankton er mikroskopiske organismer, som lever i våde miljøer, både i ferskvand og saltvand. Nogle planteplankton er bakterier, men andre er protister. De fleste er encellede.

Ligesom landplanter, har planteplankton klorofyl til at indfange sollys, og de bruger fotosyntese til at omdanne det til kemisk energi. De forbruger kuldioxid (CO2) og frigiver oxygen i atmosfæren. Alle planteplankton bruger fotosyntese, men nogle får ekstra energi ved at indtage andre organismer.

Planteplankton vækst afhænger af tilgængeligheden af kuldioxid, sollys og næringsstoffer.

NASA

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