porifera ( 6 points) atleast
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Answer:
1.Poriferans are commonly called sponges.
2.These are multicellular organisms which are sessile/sedentary in nature.
3.Most of them are marine while a few are fresh water forms.
4.Body is cylindrical, asymmetrical or has radial symmetry.
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- they are non-motile and Marine animals found attached solid objects of seawater for support. vєry few of them are found in freshwater.
- they are multicellular and have cellular level of organisation
- a large body cavity is present in the body of sponges.
- they are covered with hard outside layer or skeleton called Spículєѕ.
- they have a simple body design and involves very less differentiation and division into tissues.
- examples include : sycon, sponge, єtc.
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