What is important about the minerals calcium and iron?

Calcium builds bones and teeth; activates enzymes throughout the body. It helps regulate blood pressure; and helps muscles to contract, nerves to send messages, and blood to clot and Iron helps make hemoglobin which is the oxygen-carrying chemical in the body's red blood cells, and myoglobin which is a protein in muscle cells. Iron is essential for activating certain enzymes and for making amino acids, collagen, neurotransmitters, and hormones..

for respect usually. some people might be little awkward if you meet or some would be different. usually   you dont love people when you meet them depends on the type of person.

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answer; the national uniform billing committee(nubc);