The walls of the stomach contain a thick layer of mucus. The stomach itself is filled with pepsin and Hydrochloric acid in order to digest food. The thick layer of mucus prevents these acids from digesting the wall of your stomach.
Occasionally this mucus recedes and some of the acid can get in. When this occurs, it causes a Peptic Ulcer.
do animals contain a nucleus
Animals do not have a cell wall
no
Fungi. It's cells have cell wall that didn't contain cellulose but chitin.
No, cereal does not contain wallpaper glue
Yes
it contains chloraphasts
cell wall
in general, prokaryotes do have a cell wall. e.g most bacteria
a cell membrane and a cell wall
all plants.
None