Page 15 - 11-Bio-7 The Kingdom protista
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7. The Kingdom Protista (or protoctista) eLearn.Punjab
Animation 7.11: Euglenoids
Source and Credit: sgprotist.files.wordpress
(ii) Dinoflagellates
One of the most unusual protist phyla is that of dinoflagellates. Most dinoflagellates are unicellular.
Their cells are often covered with shells of interlocking cellulose plates impregnated with silicates.
Ecologically, dinoflagellates are one of the most important groups of producers (second only to
diatoms) in marine ecosystem. Dinoflagellates are known to have occasional population explosions
or blooms. These blooms frequently colour the water orange, red or brown and are known as red
tides (Fig. 7.9).
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