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Assertion : The number of cells in a mul...

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 reason are true and reason is correct explanation of the assertion .

B

If both the assertion and reason are true but reason is not a correct explanation of the assertion .

C

If the assertion is true but the reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
D
The 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 cells vary greatly in their size. Mycoplasma celsl are the smallest , ranging from 0.1 to 0.3 mm, whereas human cells geneally range from 20 to 30 `mu`m. Nerve cells are the longest .
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