They all regulate and support your body’s functions. They all work together by stabilizing each detail and movement of your body and keeps it functioning.
Answer:
To ensure their survival by reproducing
<span>Sumerians built walls using the natural resource they were surrounded with, which was namely clay. They used this clay to create fired mud-bricks, as there was not any other building stone available at the time. However, the clay mud-bricks proved to be a solid structure for town fortification.</span>
