1.

Which are the larval stages of Porifera.

Answer»

Larval stages of Porifera: 

Parenchymula – Flagellate larvae of calcinean sponges 

Amphiblastula – Free swimming larval stage of Sycon and many other calcareous sponges.

Rhagon— Larval stage which give rise to the leuconoid condition in demospongiae. 



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