Second heart sounds: a. Signaling the onset (beginning) of systole. O b. Is abnormal heart sound. O C. Results by opening of atrio-ventricular valves. d. Is mostly coincides (at the same time) with the p wave • e. Results by closing of semilunar valves.

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A: Inheritance is defined as the passing of traits from one generation to next generation. 

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A: Bile is a physiological solution that is aqueous and produced, then secreted via the liver. It consi...

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A:

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