Animal Kingdom Question 708
Question: Characteristic feature of coelenterata is
[CPMT 1996]
Options:
A) All are marine
B) Presence of tentacles around mouth
C) Polyp
D) Gastrovascular cavity
Show Answer
Answer:
Correct Answer: D
Solution:
The gastro-vascular cavity is the primary organ of digestion and circulation.
The cavity has only one opening to the environment and the food goes in and waste comes out of the same opening.
It is also responsible for the transport of nutrients in the body. This is one of the main feature of Cnidarians.
So, the correct answer is ‘Gastro-vascular cavity’.