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    Question

    The longest part of the alimentary canal is

    the
    A Small Intestine Correct Answer Incorrect Answer
    B Large Intestine Correct Answer Incorrect Answer
    C Oesophagus Correct Answer Incorrect Answer
    D Both A and C Correct Answer Incorrect Answer

    Solution

    The food enters the small intestine from the stomach. This is the longest part of the alimentary canal and is fit into a compact space because of extensive coiling. The length of the small intestine differs in various animals depending on the food they eat. Herbivores eating grass need a longer small intestine to allow the cellulose to be digested. Meat is easier to digest, hence carnivores like tigers have a shorter small intestine. Hence, option A is correct.

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