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Photosynthetic organisms occur at differ...

Photosynthetic organisms occur at different depths in the ocean. Do they receive qualitatively and quantitatively the same light ? How do they adapt to carry out photosynthesis under these conditions.

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Photosynthetic organisms occur at different depths in oceam. Do they receive qualitatively and quantitatively the same light ? How do they adapt to carry out photosynthesis under these conditions ?

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Considering the fact that aquatic photosynthesis accounts for 90% of the total photosynthesis, explain how photosynthetic organisms living at different depths of the ocean are able to adapt to perform photosynthesis.