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Algae, Phylum Pyrrophyta - Coggle Diagram

- - - - they have characteristics of both plants and animals
        
        most euglenoids photosynthesize, but they don't have cell walls
        
        some are heterotrophs
- - - - they use chlorophyll and carotenoids as pigments.
        
        They store food as oil
        
        Diatom cell walls are composed of silica
        
        Diatoms reproduce both sexually and asexually
- - - - predominantly unicellular, with two flagella at right angles to one another, causing the dinoflagellates to spin as it moves.