Consider the two statements:

I: Lifespan of living organisms are correlated with their body size
II: Almost always, larger the body size more will be the lifespan


1. Both I and II are correct and II explains I.
2. Both I and II are correct but II does not explain I.
3. I is correct and II is incorrect.
4. Both I and II are incorrect.

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Consider the following statements :

1. The period from birth to the natural death of an organism represents its lifespan.
2. The lifespans of organisms are strictly correlated to their body size.
3. No individual is immortal, except single-celled organisms.

Which of the above statements are true?

1. I and II only 2. I and III only
3. II and III only 4. I,II, and III

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A prominent Indian botanist noted chiefly for his invention of the technique of test-tube fertilization of angiosperms is:

1. Panchanan Maheshwari 2. M. S. Swaminathan
3. Gurdev Khush 4. Y. Subbarow
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