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Assertion : The number of cells in a multicellular organism is inversely proportional to the size of body. Reason : All the cells in the biological world are of same size.A. If both the assertion and the reason are true and the reason is a correct explanation of the assertionB. If both the assertion and reason are true but the reason is not a correct explanation of the assertionC. If the assertion is true but the reason if falseD. If both the assertion and reason are false |
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Answer» Correct Answer - D Number of cells in a multicellular organism are directly proportional to the size of the body. On the other hand, it is a fact that cell vary greatly in their size. Mycoplasma cells are the smallest, ranging from 0.1 to `0.3 mu m`, whereas human cells, generally range from 20 to `30 mum`. Nerve cells are the longest. |
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