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Biology, 23.10.2019 01:30 AllyChance2564

Coral bleaching, which causes high coral mortality, has been occurring widely in coral reefs. coral bleaching actually refers to the death of symbiotic dinoflagellates living within the corals. why does coral bleaching cause the corals to die?

a. dinoflagellates protect the corals from pathogenic bacteria.

b. dinoflagellates provide nutrients from the products of photosynthesis which are essential for zooxanthellae survival.

c. dinoflagellates secrete the calcium carbonate that forms the "exoskeleton" of coral animals.

d. dinoflagellates attract zooplankton and other prey that the corals eat.

e. dinoflagellates protect the corals from uv radiation.

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