Cells are the primary units of the human body. Cells grow and divide into new cells. Generally, the cell dies when they grow too old. and then
https://gomedii.com/blogs/english/wp-login.php?action=logout&redirect_to=https%3A%2F%2Fgomedii.com%2Fblogs%2Fenglish%2F&_wpnonce=61c72dba67