The Cardiovascular System of a CoralCoral does not have a circulatory system. Coral's stomachs mainly serve as the circulatory system because of its gastrovascular system. The many species of fish that live symbiotically with the coral also aid in the circulation of materials, oxygen, and nutrients for coral. In coral there is also a unique cell type, the cnidocyte, which helps to gather food. the food collected is taken into the central gastrovascular cavity where extracellular digestion takes place and then intracellular digestion. The branches of the gastrovascular cavity allow the materials, nutrients, and food to travel ot all parts of the coral.
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