Cells
Not to be confused with batteries.
A cell is a tiny structure with it's own protective skin. >10 000 000 of cells stick together then make into bbody tissues.
Two cells are: animal cell and plant cell.
Here is the specs:
Organelles: A smallest parts in a cell.
Cell membrane: Protect our cells.
Nucleus: Controls the cell.
Cytoplasm: For mineral salts
Cell wall: Give plants a fixed shape.