Animal Kingdom Question 718
Question: Sense organs of Aurelia are
[AIIMS 1999]
Options:
A) Tentilla
B) Tentaculocyst
C) Nematocyst
D) Otolith
Show Answer
Answer:
Correct Answer: B
Solution:
Aurelia possesses sensory organs that allow them to detect light, chemicals, and touch.
The margin of the umbrella portion of the jellyfish consists of Tentaculocyst or hollow tentacles.
These tentaculocysts consist of greatly modified and reduced tentacle containing a cavity with lithites (a calcareous concretion) and often being sunk in a pit or enclosed in a pouch.
These also have a pad of ciliated sensory epithelial cells that help in sensory functions. So, the correct answer is ‘Tentaculocyst’.
BETA
