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The main cations found in living organisms are the sodium cation (Na+), the potassium cation (K+), the calcium cation (Ca++), iron cations (Fe++, Fe+++), the magnesium cation (Mg++), the zinc cation (Zn++) and the manganese cation (Mn++).
Anganifelix answered the question on May 7, 2018 at 17:56
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