Answer:
Stomach mucus protects the gastrointestinal cells from the damage that gastric juices can cause. Gastric juices are very acidic and without the mucus, the acid can destroy the cells and tissues inside the stomach.
Ph Level lower than 7 because if you look up properties of a base it twlls you what it is
You plan and conduct and experiment.
I think the correct answer from the choices listed above is option B. Models need to be changed when <span>scientific understanding changes. This should be done since the assumptions where the models are based on are changed. Hope this answers the question.</span>
any sort of ancient fossil would be my quess. also i am on achallenge to see how many friends i can get on brainly so pls friend me
