Canal system in loreal stage of porigera
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The water circulatory system of sponges also called as canal system is the characteristic feature of the phylum Porifera. Canal system is also known as aquiferous system. The canal system of sponges helps in food acquisition, respiratory gas exchange and also in excretion.
The body of the sponges has many holes or pores called ostia. Their bodies have a large central cavity called the spongocoel. Water enters through the ostia into the spongocoel and goes out through the osculum.
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The body of the sponges has many holes or pores called ostia. Their bodies have a large central cavity called the spongocoel. Water enters through the ostia into the spongocoel and goes out through the osculum.
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