A) \[N{{a}^{+}}\]- nerve impulse
B) \[C{{o}^{++}}\]- for growth lungs and skin
C) \[C{{o}^{++}}\]-bones and teeth formation and muscle contraction
D) \[Z{{n}^{++}}\]-essential component of protoplasm
Correct Answer: D
Solution :
\[Z{{n}^{++}}\] is not the essential component of protoplasm.You need to login to perform this action.
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