Once food is in the small intestine, it stimulates the pancreas to release fluid containing a high concentration of bicarbonate. This fluid neutralizes the highly acidic gastric juice, which would otherwise damage the membrane lining of the intestine, resulting in a duodenal ulcer.
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Layering.
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-Payshence xoxo
Answer:
D
Explanation:
The atmosphere is not an eycosystem
Archea is the correct answer. :) good luck!