Q. The poisonous fluid present in nematocyst of Hydra is
A) Venom
B) Haematin
C) Toxin
D) Hypnotoxin
Explanation
Nematocyst is filled with a poisonous fluid called hypnotoxin, which is a mixture of proteins and phenols. Nematocyst is a definite response of Hydra for offence, defence, food capture, anchorage and locomotion.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.