Porifera (sea sponges) are asymmetrical, lack a mouth and anus, and have spicules for support.
Porifera, like sea sponges, exhibit asymmetry, lack a mouth or anus, and use spicules for structural support.
| Front | Features of porifera: symmetry, body cavity, segmentation, other features, example |
|---|---|
| Back | assymetry, no mouth or anus, spicules for support, sea sponge |
Tags: 5_3_classification
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