A) Hydrozoa
B) Scyphozoa
C) Anthozoa
D) All of these
Correct Answer: A
Solution :
Hydrazoan (eg. Hydra, Obelia, Plumularia, Hydractinia etc) show highest degree of polymorphism and presenting the greatest number of medusoid and polypoid types,You need to login to perform this action.
You will be redirected in
3 sec