<span>bile
</span><span>a bitter greenish-brown alkaline fluid that aids digestion and is secreted by the liver and stored in the gallbladder.
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So the anwser is B.
Chemical breakdown is affected by it I just did in zymes treated by the track and accessory organs as well as hydrochloric acid secreted by the stomach the G.I. tract is protected from the corrosive actions of these enzymes and acid by a mucous membrane composed of epithelial cells which secrete mucus and fluid
Yes you can get acid imbalance from constipation