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Question : Which of the following cells line the spongocoel and canals in members of the phylum Porifera?

Option 1: Somatic cells

Option 2: Collar cells

Option 3: White cells

Option 4: Sex cells


Team Careers360 25th Jan, 2024
Answer (1)
Team Careers360 27th Jan, 2024

Correct Answer: Collar cells


Solution : The correct answer is Collar cells .

Choanocytes, also called collar cells, are special cells that cover the inside of the central cavity (spongocoel) and canals in sponges. These cells have tiny, hair-like structures called flagella. The flagella move in a coordinated way to create a flow of water that goes in one direction, towards the opening at the top called the osculum. This flow helps the sponge filter and collect nutrients from the water, kind of like a natural water pump for the sponge.

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