Which of the following is an organ of the circulatory system?, a. hearth b. kidney c. roots d. lungs, Pa help po naman :<

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Which of the following is an organ of the circulatory system?


a. hearth b. kidney c. roots d. lungs

Pa help po naman :<​

Answer:

a. heart

Explanation:

Your heart is the only circulatory system organ.

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