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  • In most simple type of canal system of Porifera, water flows through which one of the following ways?Option: 1 Ostia > Spongocoel > Osculum &gt

In most simple type of canal system of Porifera, water flows through which one of the following ways?

Option: 1

Ostia > Spongocoel > Osculum > Exterior
 


Option: 2

Spongocoel > Ostia > Osculum > Exterior
 


Option: 3

Osculum > Spongocoel > Ostia > Exterior
 


Option: 4

Osculum > Ostia > Spongocoel > Exterior


Answers (1)

best_answer

 

 

Water Canal System in Porifera -

Asconoid Type: 

  • The route of water can be represented as: water from exterior → incurrent pores → spongocoel → osculum → water out. For example, Leucosolenia.

 

Syconoid Type: 

  • The route of water can be represented as: dermal pores → incurrent canals → prosopyles → radial canals → internal ostia (apopyles) → spongocoeL → osculum → out. 

Leuconoid Type: 

  • The route of water can be represented as: dermal ostia → incurrent canals → flagellated chambers → apopyles → excurrent canals → larger channels → oscula → out.

-

 

 

 

Asconoid type is the simplest type of canal system. The route of water can be represented as: water from exterior incurrent pores spongocoel → → → osculum → water out.

Posted by

himanshu.meshram

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