Translations:AY Honors/Marine Algae/Answer Key/13/en

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10. What is the greatest depth that algae grows in the ocean? Why can it not grow in deeper water?

The deepest living algae are those that are attached to the sea-bed under several meters of water. The limiting factor in such cases is the availability of sufficient sunlight to support photosynthesis. The deepest living seaweeds are the various kelps.