Question

A structure not present in Hydra is

• A. Nerve cells
• B. Epitheliomuscular cells
• C. Choanocytes/Glial cells
• D. Cnidocytes

Answer 1

The correct option is C Choanocytes/Glial cells

Hydra does not consist of Choanocytes (a flagellated cell with a collar of protoplasm at the base of the flagellum, numbers of which line the internal chambers of sponges) and glial cells (brain cells) Cnidocytes for Nematocyst function that is used for prey capture, nerve cells for sensory function and epithelial-muscular cells for locomotion, contraction etc. The choanocytes do not belong to the coelenterates.

So, the correct answer is 'Choanocytes/Glial cells'.