Question

what do u mean by(choanocytes).???????????? what is its function??

Answer 1

choanocytes are also known as collar cells which are the characteristic cells of poriferans
their function is to generate a flow of water through the sponges pores, into the spongocoel , and out through the osculum.

Answer 2

Choanocytes, also called collar cells, are flagellated structure and a unique characteristic of porifera.
They form the lining of spongocoel and help in maintaining the water flow by endless beating of flagella.