Troy
It was built on hill surrounded by stone walls
Most city states were surrounded by walls for protection purposes.
Walls were built for protection, so indirectly they improved life by adding security
The acropolis was important for the ancient Greeks. This is because the acropolis was surrounded by walls for added protection from invaders or war. For example, in times of war women, children, and elderly people all gathered inside the city walls for protection. In sum, the ancient Greeks were safe in he acropolis during war.
Medieval towns primarily developed in Europe, particularly in regions with favorable trade routes, near rivers, or along coastlines. These towns typically featured a central marketplace, narrow winding streets, and buildings made of timber or stone, often with overhanging upper floors. Towns were often surrounded by walls for protection, and they included essential facilities like churches, guild halls, and workshops, reflecting the social and economic activities of the time. As centers of commerce and craft, they attracted a growing population, leading to vibrant urban life.
Why was an oasis surrounded by a wall in the olden days
Strong defenses were a very important part of the Roman Empire, the Romans decided to protect the towns. They built walls around all the towns to protect the towns. That is why the walls were important
Yes. They are.
No, they are not!
Snake
Protection from invasion and enemies. The walls are high and usually have watchtowers to look for armed forces approaching the city so a warning can be given and gates closed.
Human cells do not have cell walls. Plant cells have cell walls made of cellulose that provide structural support and protection. Human cells are surrounded by a plasma membrane, which maintains cell shape, regulates what enters and exits the cell, and interacts with other cells.