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Welcome to the eGyanKosh resource on “Exercise-9 Mollusca-II: External Features, Dissection, and Preparation of Temporary Mount of Radula.” This comprehensive study material is designed for IGNOU students in 2025, offering an in-depth exploration of the fascinating world of mollusks. Through detailed descriptions, illustrations, and step-by-step instructions, learners will gain valuable insights into the external anatomy of molluscs, the dissection process, and the preparation of temporary mounts of radula, enhancing their understanding of these diverse organisms. Dive into this essential resource to enrich your studies and develop practical skills crucial for your academic journey in zoology. Enjoy your exploration and learning experience!