Which of the following is a role of Ca^...

Which of the following is a role of `Ca^(+2)` in biology

`Ca^(+2)` ions are necessaray for blood clothing

`Ca^(+2)` ions are necessary to maintain regular heart beating

`Ca^(+2)` ions are necessary for muscle contraction

All of these

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The correct Answer is:

Basing on the uses of `Ca^(+2)` in biology it is necessary for blood clotting , maintain regular heart beatng and muscle contraction.

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