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Algae: nourah and leen - Coggle Diagram
Algae: nourah and leen
Diatoms
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They store food as oil, making them a nutritious food source and buoyant in water.
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Dinoflagellates
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Predominantly unicellular, with two flagella at right angles to one another, causing the dinoflagellate to spin as it moves.
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Some are autotrophic, some are heterotrophic
Some are bioluminescent, meaning they emit light
Euglenoids
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Most euglenoids photosynthesize, but do not have a cell wall.
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Chrysophytes
Phylum Chrysophyta, chrysophytes, are yellow-green or golden-brown algae.
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Most chrysophytes are unicellular, but some are colonial
Characteristics of algae
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Algae differ from plants because they do not have roots, leaves, or other structures typical of plants.
Many algae have chlorophyll as their main photosynthetic pigment, and also have accessory pigments to help them absorb light at different wavelengths.
Brown Algae
Phylum Phaeophyta contain the brown algae, some of the largest and most plantlike multicellular algae.
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Green Algae
Phylum Chlorophyta, green algae, are photosynthetic organisms that have much in common with plants.
Can be unicellular, multicellular, or colonial
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