Phylum Porifera - Diversity in Living Organisms | Class 9 Biology

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✅ In this video,

✔️ Class: 9th
✔️ Subject: Biology
✔️ Chapter: Diversity in Living Organisms
✔️ Topic Name: Phylum Porifera

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Points covered in this video:-
Eukaryotic
Multicellular
Heterotrophic
Cell wall is absent
Most of them are mobile
Classified into phyla on the basis of extent and type of the body design differentiation found.
Commonly called sponges
Body with holes i.e. body is perforated
Holes are called pores
Non-motile animals, attached to a solid support
Pores lead to a large body cavity called Spongocoel
Spongocoel and Pores form Water Canal System
Canal system helps in circulating water throughout the body to bring in food and oxygen
Asymmetrical body
Endoskeleton is present
Cellular level organisation is present
Diploblastic - Two germ layers in Embryo
Exclusively aquatic
Mainly found in marine habitats
Some are freshwater animals
Shows power of regeneration

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