Stress-induced expulsion of zooxanthellae
Gaining of zooxanthellae
Over-production of calcium carbonate
Under-production of calcium carbonate
True
False
15,000+
150+
1,500+
150,000+
Interfering with neurotransmission
Lysing cell membranes
Damaging muscle cells
Cell layers
Organs
Symmetry
Nerves
Muscles
An osculum
Choanocytes
Spicules
Water canal system
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