Phylum Coelenterata (Cnidaria) | Complete Biology Lecture | Hydra, Obelia & Coral Reefs | FSC I
Автор: BioSphere Academy
Загружено: 2026-01-28
Просмотров: 6
Описание:
In this biology lecture, we discuss Phylum Coelenterata (also known as Cnidaria) in detail. This lecture covers all the important concepts, characteristics, and examples needed for exams and concept clarity.
🔬 Topics covered in this video:
Meaning and Greek origin of Coelenterata
General characteristics (diploblastic, radial symmetry, nerve net)
Cnidocytes and nematocysts
Body forms: Polyp and Medusa
Alternation of generations
Polymorphism in Obelia
Solitary and colonial forms (Hydra, Physalia)
Importance of coelenterates
Coral reefs (CaCO₃ exoskeleton)
Economic importance and examples
📚 This lecture is helpful for FSc, FSC Part 1, Intermediate, MDCAT, ECAT, and entry test preparation.
👍 Like, Share & Subscribe for more easy and conceptual biology lectures.
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