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प्रश्न
Canal system exists in members of the phylum ______.
विकल्प
Coelenterata
Protozoa
Porifera
Arthropoda
MCQ
रिक्त स्थान भरें
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उत्तर
Canal system exists in members of the phylum Porifera.
Explanation:
Poriferans, or sponges, have a canal system through which water circulates to bring food and oxygen. This characteristic is not found in the other listed groups.
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