A) Thesocytes
B) Amoebocytes
C) Archaeocytes
D) Scleroblast
Correct Answer: B
Solution :
The piece of sponges carrying amoebocyte and choanocytes will graw into complete sponge. In freshwater sponges and a few marine sponges gemmules are formed. Each gemmule has the mass of archaeocytes surrounded by protective covering to tide over seasonal drought or adverse environmental conditions on return of favourable conditions, mass of archaeocytes comes out via micropyle (minute pore) and grows into a sponge.
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