Question

Which of the following is/are found in a sponge?

• A. Choanocytes
• B. Nematocysts
• C. Amoebocytes
• D. Both A and C

Answer 1

The correct option is D Both A and C

Choanocytes, the flagellated collar cells are the characteristic feature of phylum Porifera and serve in setting the water current that delivers food and oxygen and removes waste and carbon dioxide. It also serves in phagocytosis of food particles.

Amoebocytes are free wandering cells and are of many types each specialized to perform a specific function. Choanocytes or collar cells line the spongocoel and the canals.

Nematocyts are cells found in Cnidarians.

So, the correct answer is option D.