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59. How does our hearts never gets tire of pumping blood throughout our body? Because that’s how amazing God created our body. As long as we are breathing, our heart will continue pumping. It will never get tired because it is its responsibility to pumps blood throughout our body. Our heart is also like other organs in our body, All of our organs will continue doing their responsibilities as long as we are alive. Thus the only way we can help them is to stay healthy.

Answer:

D. It consists of cardiac muscle tissues, which means it moves involuntarily.

Explanation:

Your heart is an incredibly powerful organ. It works constantly without ever pausing to rest. It is made of cardiac muscle, which only exists in the heart. Unlike other types of muscle, cardiac muscle never gets tired.

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