3. These sea animals secrete a story exoskeleton, that.
quantities, form reefs that extend from shorelines of tropical islands and coas
deep ocean waters. Such marine structures serve as habitat and breeding ground for
marine life.
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SC/A/LR​


3 These Sea Animals Secrete A Story Exoskeleton Thatquantities Form Reefs That Extend From Shorelines Of Tropical Islands And Coasdeep Ocean Waters Such Marine class=