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The best answer would be B.
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The brachial artery<span> is a major </span>blood<span> vessel located in the upper arm and is the main supplier of </span>blood<span> to the arm and hand. ... The </span>brachial artery's<span> pulse can be felt on the elbow's front side. This is why </span>blood pressure<span> is measured in this area using either a sphygmomanometer (a </span>blood pressure meter) or a stethoscope. the answer is >5 mm Hg
Answer: Chemical level
There are six levels of structural organization of a human body. Of these, the chemical level is the lowest in the hierarchy which includes atoms and molecules that are essential in maintaining life.
Atom is the smallest part of elements such as carbon, hydrogen, oxygen, nitrogen, calcium, potassium and sodium. Molecules are the chemical combination of two or more atoms.
