Write a Short Note on Hydra
Short Note on Hydra
It belongs to phylum Coelenterata.
It is a fresh water animal and found in pond, stream etc.
It is 6-10 mm long in squeezed shape. In elongate shape it is 20-30 cm.
- i) Mouth is surrounded by many tentacles.
- ii) Tentacles have many stinging cells which acts as organ of offence and defense.
iii) Tentacles capture prey and stinging cells push it in mouth.
- iv) Un-digested food is also egested by mouth.
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