Most city states were surrounded by walls for protection purposes.
The wall of the pulp cavity is surrounded by Dentin
cell wall
Mt Taygetus and Mt Parnon surrounded the valley in which the Spartans occupied. :)
No, bacteria is surrounded by a cell wall.
It is the remnants of the wall that surrounded the Second Temple.
The eye wall is surrounded by the spiral bands.
Why was an oasis surrounded by a wall in the olden days
cell wall
No. Some bacteria, like mycoplasmas, lack cell walls.
Teminos wall
No, they are not!
A defensive wall.