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

Ostia $\to$ Spongocoel $\to$ Osculum $\to$ Exterior

Spongocoel $\to$ Ostia $\to$ Osculum $\to$ Exterior

Osculum $\to$ Spongocoel $\to$ Ostia $\to$ Exterior

Osculum $\to$ Ostia $\to$ Spongocoel $\to$ Exterior

Solution

Ostia $\to$ Spongocoel $\to$ Osculum $\to$ Exterior

The ascon type is the simplest type of canal system found in asconoid sponges like Leucosolenia. The course of water current in ascon type of canal system looks like

Ingressing water $\to_{Ostia}^{Through}$ spongocoel $\to_{Osculum}^{Through}$ To outside.

Some More Questions From Animal Kingdom Chapter

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Animal Kingdom

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Animal Kingdom

In most simple type of canal system of Porifera, water flows through which one of the following ways? Ostia → Spongocoel → Osculum → Exterior Spongocoel → Ostia → Osculum → Exterior Osculum → Spongocoel → Ostia → Exterior Osculum → Ostia → Spongocoel → Exterior

Some More Questions From Animal Kingdom Chapter

Distinguish between intracellular and extracellular digestion?

What is the difference between direct and indirect development?

What are the peculiar features that you find in parasitic platyhelminthes?

What are the reasons that you can think of for the arthropods to constitute the largest group of the animal kingdom?

Water vascular system is the characteristic of which group of the following:

“All vertebrates are chordates but all chordates are not vertebrates”. Justify the statement.

How important is the presence of air bladder in Pisces?

What are the modifications that are observed in birds that help them fly?

Could the number of eggs or young ones produced by an oviparous and viviparous mother be equal? Why?

Segmentation in the body is first observed in which of the following

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation