Your growth is cell growth (and cell division).
Cells divide.
Cells grow in order for the organism to grow and reproduce. Cells only grow to replace other cells that die off and allow for the continued existence of the organism.
Multicellular organisms grow when their cells split off into smaller cells. They make more cells.
They reproduce cells to grow
Our bodies grow more cells,but more and more cells die.
In multi-cellular organisms as cells grow and divide, they specialize.
epithelial cell
Sperm cells can grow back.I had 2 children then had no sperm cells 2 years later another kid
Vegetative Cells...
Cancerous Cells
Yes water can make your brain cells grow, but too much water will make your brain cells burst.
When cells divide they help you grow. Also, they replace, grow, repair your dead cells.