Porifera: Canal System
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Describe different types of canal system found in Porifera. Also mention their functions. (UPSC 2022, 15 Marks, )
पोरीफेरा में पाए जाने वाले विभिन्न प्रकार के नहर तंत्र का वर्णन करें। उनके कार्यों का भी उल्लेख करें। (Describe different types of canal system found in Porifera. Also mention their functions.)Answer
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Give an elaborate account of canal system in Porifera and discuss the taxonomic importance of spicules. (UPSC 2013, 25 Marks, )
पोरीफेरा में नहर प्रणाली का विस्तृत विवरण दें और स्पिक्यूल्स के वर्गीकरणीय महत्व पर चर्चा करें। (Give an elaborate account of canal system in Porifera and discuss the taxonomic importance of spicules.)Answer
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