Eukarya/ Heterokonts

The Brown Algae





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Photosynthetic organisms with chlorophylls a and c. Members are distinct from other such groups as determined by their cell ultrastructure and complexity of their body structure. This group includes members that have a higher level of tissue differentiation than any other protist. Some kelps form sieve-tube members able to transport photosynthate. In general, kelps also have a rather complex external morphology which can be divided into three features: the blade, a holdfast and the stipe. Primarily a marine group.


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