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111. What are the advantages of multicellularity?

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Following are the disadvantages of multicellularity:

1. Certain specialized cells lose the power of division and cannot be replaced if damaged.

2. Some specialized cells lose basic functions.

3. Multicellualr organism have much complex system.

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113. What is compartmentalization ?

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114. Describe types of cells on the basis of nuclear membrane

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115. Define cell and name the one who discovered it.

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116. What is cell theory ?

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117. “The function of an organism is the sum result of the sum total of activities and interactions of constituent cells”. Comment.

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118. What are the characteristics of a semipermeable membrane ?

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119. What is plasma membrane?

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120. Describe fluid mosaic model.

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