Calcium is one of the most important minerals for the human body. It helps form and maintain healthy teeth and bones.
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Function
-Building strong bones and teeth.
-Clotting blood.
-Sending and receiving nerve signals.
-Squeezing and relaxing muscles.
-Releasing hormones and other chemicals.
-Keeping a normal heartbeat.
Answer:
its the spinal cord and the brain
<span>The cell that does not have a cell wall is the <em>"animal cell".
</em>Have a wonderful day! :D<em>
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B)
humans are more closely related to chimps than any other apes
hope it helps</span>