How Do Phototrophic Microorganisms Benefit When Associating with Corals

question 30

Multiple Choice

How do phototrophic microorganisms benefit when associating with corals?

• A) Calcium and carbonate ions are released, which help buffer the pH and prevent dramatic pH shifts.
• B) The coral skeleton is used as a source of bicarbonate for the autotrophic growth of the phototrophs.
• C) The coral skeleton is an extremely efficient light-gathering structure that greatly enhances light harvesting for photosynthesis.
• D) The water's temperature in and around the coral skeleton is much warmer.

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