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WAEC Biology 1991 (August) Question 1

Question 1

Cell Structure and Organisation

The cell is a functional unit of living organisms because

  1. A.multicellular organisms are made up of cells
  2. B.all the cells in a multicellular organism function as a single cell
  3. C.the function of a multicellular organisation is the sum total of the functions of its constituent cells
  4. D.the function of a single cell is superior to that of the multicellular organism
  5. E.the cells of a multicellular organism are similar in structure
Show the answer and explanation

Answer: C (the function of a multicellular organisation is the sum total of the functions of its constituent cells)

Explanation

Everything a multicellular organism does is the combined work of its cells, which is why the cell is called the unit of function.