a. It is a organ.
b.It contains endothelium.
c.It contains nerves.
d.It is an organ system
e.Its muscles contain elongated fibers
d. It is an organ system
Heart is an organ which belongs to the circulatory system....
Please let me know if you have any other questions and best me if you are satisfactory.
one statement is false concerning the heart
i want to know which one of choices is false
the choice is e
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