Question

What did you observe in acid and leaf experiment? what you have
understand regarding human digestive system from this?
​

Answer 1

Answer:

The experiment between leaves and acid are leaves is a source this cause we survive in the earth,if leaves are not take carbodioxide gas,,then our earth will be spoiled and we take oxygen and survive in Earth

Acid

Explanation:

is taste like sour feel

Answer 2

Explanation:

The leaf which was applied by petroleum jelly was not affected by acid. But the other leaf was affected. The mucus secreted by the walls of stomach to protect it from the harmful acids. "Stomach protects it self from the secretion of its own acids."