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Nervous System of Hydra



Nervous System of an Hydra       Hydra is a small aquatic animal. It is found in fresh water ponds, rivers and lakes. It is predatory animal. Hydra is a simple multicellular animal and does not possess a brain. Hydra has a tubular body up to 10 mm long. Its mouth is surrounded by many thin, mobile tentacles. The nervous system of hydra consists of nerve cells which are joined and spread in its whole body in the form of a network. This network of nerve cells connect sensory photoreceptors and touch sensitive nerve cells located in the tentacles.




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  1. Explain nervous system of hydra by drawing a neat and clean diagram.



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