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Question
In a way green plants and cyanobacteria have synthesized all the food on the earth. Comment.
Solution
Cyanobacteria are unicellular prokaryotic organisms. They have photosynthetic pigments like chlorophyll ac, phycocyanin and phycoerythrin. These enable them to produce food by themselves. Green plants are multicellular organisms capable of making food by using carbon dioxide, water and light energy. Therefore bacteria and green plants make food for living organisms on earth.
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