Science H.W(21/4/17)

Writing: Answer the following questions in NB.2

  1. What are villi and explain its role in small intestine.
  2. Define assimilation.
  3. State the function of large intestine.
  4. What is egestion?
  5. How is diarrhoea caused? Why ORS is given to a person suffering from diarrhoea?
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