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Question
Choanocytes are present in body of animals associated with phylum _____________.
Choanocytes are present in body of animals associated with phylum _____________.
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Solution
The correct option is A Porifera
Choanocytes are present in body of animals associated with phylum Porifera. Members of phylum porifera are known as sponges. They are generally maine and asymmetrical animals. They are primitive multicellular animals and have cellular level of organisation. They have a water transport or camal system in which waters enters through minute pore's called ostia in the body wall into a central, cavity, spongocoel from where it goes out through the osculum. This pathway helps in food gathering, respiratory exchange and removal of water. Choanocytes or collar cells line the spongocoel and the canals. The body is supported by a skeleton made up of spicules and spicules, spongin fibre. They are Hemichordata. They reproduce asexually by fragmentation and sexually by the formation of gametes.Example are sycon spongilla, Euspongia, syem. etc.
Choanocytes are present in body of animals associated with phylum Porifera. Members of phylum porifera are known as sponges. They are generally maine and asymmetrical animals. They are primitive multicellular animals and have cellular level of organisation. They have a water transport or camal system in which waters enters through minute pore's called ostia in the body wall into a central, cavity, spongocoel from where it goes out through the osculum. This pathway helps in food gathering, respiratory exchange and removal of water. Choanocytes or collar cells line the spongocoel and the canals. The body is supported by a skeleton made up of spicules and spicules, spongin fibre. They are Hemichordata. They reproduce asexually by fragmentation and sexually by the formation of gametes.
Example are sycon spongilla, Euspongia, syem. etc.
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