Seaweed is excellent. No vascular system food from root to leaf and stem, a higher plants such as grass. But the method is used to absorb water and minerals from the sea to various cells directly, plant this group no blossom and fruit. However, an invasive species with spore formation and breaking, seaweed, divided into groups, according to the structure and colours of the photosynthesis is 4 group. The blue-green algae, green algae, brown algae, red algae
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