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1. Which metal is present in chlorophyll? 2. What is the role of calcium in our body?

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1. Which metal is present in chlorophyll?

2. What is the role of calcium in our body?
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1. Mg 

2. About 90% of body calcium is present in bones and teeth. It also plays important roles in neuromuscular function, intemeuronal transmission, cell membrane integrity and blood coagulation.

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