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The Fundamental Unit of Life

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Multiple Choice

Which of the following statements are correct about cell wall?
a. It is made of a complex carbohydrate called cellulose.
b. It is found in both plant and animal cells.
c. It is semi-permeable.
d. It is hard and rigid.

  1. Only a and b
  2. Only a and c
  3. Only a and d
  4. All a, b, c and d
  5. None of these
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