Why Do Photosynthetic Protists Play a Critical Role in Aquatic

question 57

Multiple Choice

Why do photosynthetic protists play a critical role in aquatic ecosystems?

• A)Photosynthetic protists and prokaryotes are the major producers that form the critical base of food webs.
• B)Photosynthetic dinoflagellates are in a mutualistic symbiotic association with coral, and coral reefs are one of the most diverse and productive biomes on earth.
• C)They outcompete the non-photosynthetic parasitic protists.
• D)They form colonies that cover the water's surface, which allows anaerobic organisms to thrive.
• E)A and B

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