Which zone of the ocean receives sufficient sunlight to support oxygenic photosynthesis by phytoplankton?
Answer and explanation
Correct answer: D. the photic (epipelagic) zone
- Step 1: The photic (sunlit) zone extends down to approximately 200 m, where sunlight intensity is sufficient for photosynthesis. Answer: the photic (epipelagic) zone. Why not the others: Below 200 m, light is insufficient for net photosynthesis.
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