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Mathematics 20 Online
OpenStudy (anonymous):

Polyp animals that form coral reefs have many unique adaptations for survival. One polyp feature that is detrimental rather than beneficial is A) secretions that produce a hard protective skeleton. B) the inability to leave the reef and swim after prey. C) stinging cells that kill prey and discourage predators. D) symbiotic relationships with algae that photosynthesize and feed them.

OpenStudy (anonymous):

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