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How does food move down the food pipe even when it may not be liquid?

Answer and explanation

Correct answer: By wave-like muscular movement

The governing concept is peristalsis. The wall of the oesophagus contains circular and longitudinal muscles that contract and relax in a coordinated wave. This wave pushes a bolus of solid, semi-solid, or liquid food toward the stomach, so movement does not depend only on gravity. Therefore option A is correct. Blood cells and stomata have no role in transporting food through the human food pipe.

Related tags

PeristalsisFood PipeOesophagusDigestionLife ProcessesWorld Of LivingScienceClass 10 Mcq

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