A) Hydra jusca
B) Hydra viridis
C) Hydra oligactis
D) Hydra vulgaris
E) All of the above
Correct Answer: D
Solution :
The commonly occurring colourless. Indian species Hydra vulgaris belong to phylum-Coetenterata. The Hydra is solitary freshwater animals and cosmopolitan in distributionYou need to login to perform this action.
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