Why is the heart considered as the most hardworking organ of the body? a. It is made of strong elastic muscles. b. It pumps blood throughout the body. c. It beats from 60 to 100 times in one minute. d. It has been beating since you were still in your mother's womb.
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Answer:
c. it beats from 60 to 100 times in a minute
(tama naman lahat pero iyan ang mas pinaka tama)