Do some research on what it means to make good backups. For example RAID Is Not A Backup, Simple Copies Are Not Backups, Copies On Same Media Are Not Backups, etc. Agreed. I do use backups on the same Media, however this is something which is annoyingly hard to remedy (in my situation at least). The main issues I have had is when a damp cable tipped a microvolt meter and killed the server, luckily I had a backup (which was an exact clone of the corrupted world files).
Owing to their structural differences, eukaryotic and prokaryotic cells do not divide in the same way. Also, the pattern of cell division that transforms eukaryotic stem cells into gametes (sperm cells in males or egg cells in females), termed meiosis, is different from that of the division of somatic cells in the body.
There are two basic kinds of cells: prokaryotic cells and eukaryotic cells. Prokaryotes, bacteria and archaea, are simple cells that have no cell nucleus. They do have bacterial microcompartments. Eukaryotes are complex cells with many organelles and other structures in the cell.