The human body sort of a coral is recognized as a ‘polyp’. Polyps are tubular, with tentacles as well as a mouth at 1 close. The coral secretes a tough substance identified as calcium carbonate like a protecting exoskeleton. Coral reefs are formed because of the exoskeletons of coral colonies. https://animalporn73725.fliplife-wiki.com/4131705/animal_sex_fundamentals_explained