Respuesta :
Answer:
Cells are the basic building blocks of living things. Cells provide structure for the body, take in nutrients from food and carry out important functions. Cells group together to form tissues, which in turn group together to form organs, such as the heart and brain. balls:D
Explanation:
Answer:
Because they do many important things for the body.
Explanation:
They make energy, they carry oxygen throughout the body, they fight against diseases, and other things too.