PHYLUM PORIFERA
Habitat: Aquatic (mostly marine)
Level of Organization: Cellular
Symmetry: Asymmetrical or radially symmetrical
Body: Pores all over → canal system for water circulation
Skeleton: Made of spicules or spongin fibres
Nutrition: Filter feeders
Reproduction: Asexual (budding) & Sexual
Examples: Sycon, Spongilla, Euspongia
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| SYCON |
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| EUSPONGIA |
- Key features:
- Canal system → water circulation for food & oxygen
- Choanocytes (collar cells) help in digestion
- Skeleton of spicules or spongin
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