Answer:
Explanation:
Cardiopulmonary resuscitation (CPR) acts as a manual heartbeat, keeping vital organs alive even after the heart has stopped beating.
Artificial External Defibrillator (AED) is an electronic device that is used to revive a person's heart when it has stopped beating.
Answer:The left ventricle
Explanation:The left chamber of the heart, precisely the left ventricle has the thickest wall because it is known as the MAJOR pump of the heart since it pumps at higher pressure
<span>The male with down syndrome would have an extra 21 chromosome.
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