Inside of the cell is HYPERTONIC as compared to the outside
<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>
Animals have four basic types of tissue: nervous, epithelial, muscle, and connective.
I think it is 60 i believe so