Answer:
The pericardium is the most outer layer of the heart. Main function to protect the heart from external forces/entry.
An average normal range is between 4,500 and 10,000 white blood cells per microliter
Answer:
B a diverging boundary where two ocean plates move apart from one another
Explanation:
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The dark brown color of a penny is most likely oxidation, which occurs when the copper in the penny comes in contact with oxygen.<span> </span>
