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The movement of water in syconoid type of canal system is 

Option: 1

Dermal ostia --> Canal --> Spongocoel --> Osculum 


Option: 2

Dermal ostia -->Incurrent canal \overset{prosoyle }{\rightarrow} Radial canal \overset{Apopyle}{\rightarrow} Spongocoel --> Osculum 


Option: 3

Dermal ostia --> Incurrent canal \overset{prosoyle }{\rightarrow}Flagellated chamber \overset{Apopyle}{\rightarrow} Excurrent canal --> Spongocoel -->Osculum


Option: 4

Pinacocytes --> choanocytes --> Enteron -->  Osculum 


Answers (1)

best_answer

As we have learned 

 

Sycon type canal system -

It is more complex than ascon type

Water \rightarrow dermal ostia \rightarrow incurrent canal \rightarrow (prosopyles) \rightarrowRadial canal \rightarrow (Apopyle) \rightarrowspongecoel \rightarrow osculums \rightarrow outside.

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