Answer: The P wave indicates atrial depolarization. The P wave occurs when the sinus node, also known as the sinoatrial node, creates an action potential that depolarizes the atria. The P wave should be upright in lead II if the action potential is originating from the SA node.
Explanation:
<span>DNA provides instructions for RNA polymerase
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Medical assistance safeguards the process of birth. The process of giving birth poses serious risk to both mother and child. There are a number of complications that can occur during the process that can cause the death of both mother and infant.
Medical assistance reduces the risk and ensures a safe delivery by being on hand in the event that a complication may arise. The infant mortality rate and the number of mothers who die in childbirth have been significantly reduced because of medical assistance.
To make foods such as bread, yoghurt and cheese.
<span>As humans cause more carbon dioxide to be released into the Earth's atmosphere, it causes the oceans to become much more acidified which in turn begins to damage the precious coral reefs. Roughly one quarter of all the life in the ocean is dependent on coral reefs for food and shelter.</span>
