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Most living organisms need to take in oxygen to survive. What is responsible for providing most of this oxygen in marine ecosystems?.

Most living organisms need to take in oxygen to survive. What is responsible for providing most of this oxygen in marine ecosystems?.
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Most living organisms need to take in oxygen to survive. What is responsible for providing most of this oxygen in marine ecosystems?.

User NoChinDeluxe
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Answer: The plants (phytoplankton, kelp, and algal plankton)

Step-by-step explanation:

User Artur Kasprzak
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