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Question
Identify the type of simple permanent tissue.
(i) The cells of this tissue are dead.
(ii)The cell walls are thickened due to lignin.
 
Options:
A .  Parenchyma
B .  Collenchyma
C .  Aerenchyma
D .  Sclerenchyma
Answer: Option D
:
D
Sclerenchyma is the tissue which makes the plant hard and stiff. The husk of a coconut is made of sclerenchymatous tissue. The cells of this tissue are dead. They are long and narrow as the walls are thickened due to lignin.

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