Phylum Mollusca: General Characteristics & Classification | Zoology UG & PG

Welcome, my dear students! In this lecture, we explore Phylum Mollusca, one of the most diverse and evolutionarily significant groups of invertebrates in the Animal Kingdom. From snails and oysters to squids and octopuses, molluscs inhabit marine, freshwater, and terrestrial ecosystems worldwide. This session explains the general characteristics of Mollusca in a simple, clear, and exam-oriented manner, including: ✔ Soft, unsegmented body organization ✔ Mantle, shell, and mantle cavity ✔ Muscular foot and its modifications ✔ Radula and feeding mechanisms ✔ Advanced organ systems ✔ Systematic classification with examples The lecture is especially useful for UG and PG Zoology students, as well as aspirants preparing for university exams, competitive exams, and concept revision. Molluscs play vital roles in ecology, economy, and human life, making this phylum both academically and practically important. 👉 Watch till the end for complete conceptual clarity. 👉 Like, Share, and Subscribe for more high-quality Zoology lectures.