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because Egyptians had natural barriers
because Egyptians had natural barriers
because Egyptians had natural barriers
Because they already had natural protection and didn't need anymore.
Animal cells
The only monerans that lack cell walls are mycoplasmas. However, most animals like the Protista do not have a cell wall either.
Animal cells do not have cell walls. Many animal-like protists also lack cell walls.
Cell walls
Lack of cell walls enables cells move easily through tiny spaces.
cytoskeleton
No they do not have.They lack a cell wall.