The primary boundary is your skin, but almost every organ has some defense against germ infection.
The Ural Mountains
Lake Victoria acts as a boundary between Tanzania, Uganda, and Kenya. Another natural boundary between these countries is the Kagera River.
True. The skin acts as a barrier against germs and also controls body temperature.
it can cause germs to spread or wrong acts
organelle
The Urals are a mountain range that acts as a boundary between Europe and Asia. It is the largest mountain range in Europe.
the stomach
Your stomach
Skin
bladrer vezica
spleen
organelle