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I was reading an article on Hydra where they mentioned Nematocyst Battery. I know that Hydra and other Cnidarians have nematocyst but why are they called Nematocyst 'Battery'?

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  • $\begingroup$ Welcome to Bio. Can you add that reference? $\endgroup$ – AliceD Nov 28 '15 at 8:00
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    $\begingroup$ sorry I cannot give you the reference right now. But i googled it and found this where the writer also called it the "Battery of Nematocyst" iaszoology.com/nematocysts $\endgroup$ – Farhan Fuad Nov 28 '15 at 8:07
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    $\begingroup$ Since cnidae are "single use" cells, and this costs a lot of energy, in order to regulate discharge, cnidocytes are connected as "batteries", containing several types of cnidocytes connected to supporting cells and neurons (from Wikipedia) $\endgroup$ – Farhan Fuad Nov 28 '15 at 8:11
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    $\begingroup$ A battery generally refers to a series. E.g., a test battery is a (generally quite large) set of (related) tests. In this case you can replace "test" by "nematocyst" I guess. But I haven't looked at the link yet. $\endgroup$ – AliceD Nov 28 '15 at 8:14
  • $\begingroup$ So it just means series and not related to energy source? $\endgroup$ – Farhan Fuad Nov 28 '15 at 8:45

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