Phylum Porifera Classification Quiz

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10 Questions

Which type of cells are responsible for producing a sponge's skeleton?

Amoebocytes

What is the name of the large opening through which water leaves the spongocoel in a sponge?

Osculum

Which cell type in sponges can transform into any other cell type required by the sponge?

Amoebocytes

What is the role of choanocytes in a sponge's feeding process?

Creating currents to force water through the sponge

Which structure surrounds the small pores (ostia) through which water enters a sponge?

Porocytes

What is the composition of a sponge's skeletal system made of flexible protein fiber?

Spongin

In which part of a sponge would you find flagellated choanocytes lining the interior?

Spongocoel

What is the function of amoebocytes in sponges?

Producing spicules

Which type of cells open and close to control water flow into a sponge through its pores?

Porocytes

What are needle-like structures found in a sponge's skeletal system called?

Amoebocytes spicules

Test your knowledge on the classification of sponges in Phylum Porifera, including the three canal systems and different body designs. Learn about the significance of spicules and the shapes/structures of sponges.

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