Nuestros corazones
by Charlotte Guillain
2021-01-30 15:54:56
The hardest working muscle in our bodies is our heart. The heart is always pumping our blood through our bodies. In this introductory title about the body, readers will learn what the heart is, what its key parts are called, and how each of these par...
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The hardest working muscle in our bodies is our heart. The heart is always pumping our blood through our bodies. In this introductory title about the body, readers will learn what the heart is, what its key parts are called, and how each of these parts functions to help keep us healthy.
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