Environment & Ecology · Coral Reefs
What primary visual and physiological change occurs during the phenomenon of coral bleaching under environmental stress?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Corals expel their symbiotic algae and turn white✓
- 2Corals absorb excess heavy metals and turn black
- 3Corals double their tissue density and turn bright green
- 4Corals dissolve completely within a few hours
Correct answer
Corals expel their symbiotic algae and turn white
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