Respuesta :
Answer:
A
Explanation:
The cardiovascular system maintains blood flow to all parts of the body which also includes the cells. The cardiovascular system aids cells with the necesarry supply of oxygen to survive.
In the body the organs work to maintain the cells in the body. The circulatory, respiratory and digestive provide nutrition and energy to the cells that need to live.
- The role of the heart is to pump blood so that oxygenated blood is carried to various parts of the body and hence the cells are maintained and get their proper nutrition on time.
Hence the option A is correct.
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