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Obelia: Structure, Life Cycle & Metagenesis | Class 11 Biology

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Obelia Structure, Life Cycle & Metagenesis Explained (Class 11 Notes + Diagram + MCQs) labelled diagram of Obelia Introduction Obelia is a marine, colonial cnidarian that provides a classic example of metagenesis (alternation of generations). It belongs to class Hydrozoa and exhibits two distinct body forms in its life cycle: a sessile polyp and a … Read more

Porifera: Structure & Canal System (Sycon & Spongilla) | Class 11 Biology

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 Porifera Structure and Canal System Explained (Sycon & Spongilla) | Class 11 Notes, Diagram & MCQs Porifera diagram Meta Description: Learn Porifera structure and canal system with Sycon and Spongilla. Includes easy explanation, labelled diagram, differences, MCQs, and Class 11 Biology notes for NEET preparation. Introduction The canal system in Porifera is one of the … Read more