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Write a short paragraph on hydra​
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Write a short paragraph on hydra​

User Pursuit
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Hydra are simple invertebrates, with two layers of body cells. They live in fresh water. Their body is radially symmetric. They have a central cavity through which they take in food and expel waste.
User Pistal
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at the moment i am thinking of 3 different hydra, marvel, mythical creature and creation on sexual reproduction between plants. If you could tell me the subject i could explain it to you. :)

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User HARIOM PHOGAT
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