21. Assertion : Schleiden and Schwann were the first to observe the cells and to put forward cell theory. Reason : The cells are always living unit.

(a)       If both the assertion and the reason are true and the reason is a correct explanation of the assertion

(b)       If both the assertion and reason are true but the reason is not a correct explanation of the assertion 

(c)        If the assertion is true but the reason is false

(d)       If both the assertion and reason are false

(e)       If the assertion is false but reason is true

21. Assertion :       Schleiden and Schwann were the first to observe the cells and to put forward cell theory.

Reason    :               The cells are always living unit

Ans. d

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