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Choose the odd one out from each group and give reason.
Oesophagus, small intestine, large intestine, rectum
Correct reason for the odd one :
Answer variants:
Oesophagus performs digestion.
Large intestine has no digestive juice.
Oesophagus
Small intestine
Small intestine has digestive juices.
Rectum
Large intestine
Rectum produces Hydrochloric acid.