Which of the following is a characteristic fe | vedclass

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(D) The phylum $Coelenterata$ (also known as $Cnidaria$) is characterized by the presence of a central gastrovascular cavity with a single opening cal

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Gastrovascular cavity

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(D) The phylum $Coelenterata$ (also known as $Cnidaria$) is characterized by the presence of a central gastrovascular cavity with a single opening called the $hypostome$ (mouth),which serves both for ingestion and egestion.While tentacles are present in many cnidarians,the gastrovascular cavity is a more fundamental and defining anatomical feature of the phylum. Therefore,the presence of a gastrovascular cavity is the most characteristic feature among the given options.

Which of the following is a characteristic feature of the phylum $Coelenterata$ (Cnidaria)?

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