Animal Kingdom Question 43

Question: Choanocytes perform:

Options:

A) Nutrition

B) Excretion

C) Reproduction

D) Secretionofspicules

Show Answer

Answer:

Correct Answer: A

Solution:

[a] Digestion in sponges is intracellular like protozoans.

It takes place in choanocytes Choanocytes (also called collar cells), are flagellated cells with a collar of protoplasm at the base offlagellum, numbers of which line the internal chambers of sponges of class porifera.