Which organism is a photosynthetic prokaryote known for oxygenic photosynthesis in marine environments?

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Multiple Choice

Which organism is a photosynthetic prokaryote known for oxygenic photosynthesis in marine environments?

Explanation:
Oxygenic photosynthesis in marine environments is carried out by cyanobacteria, photosynthetic prokaryotes. They use photosystems to split water and release oxygen, and they are common planktonic organisms in the ocean. Dinoflagellates and green algae are eukaryotes, and angiosperms are land plants, so they do not fit the description of a prokaryotic marine oxygenic photosynthesizer. Therefore, the organism described is a cyanobacterium.

Oxygenic photosynthesis in marine environments is carried out by cyanobacteria, photosynthetic prokaryotes. They use photosystems to split water and release oxygen, and they are common planktonic organisms in the ocean. Dinoflagellates and green algae are eukaryotes, and angiosperms are land plants, so they do not fit the description of a prokaryotic marine oxygenic photosynthesizer. Therefore, the organism described is a cyanobacterium.

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