Darwinʹs mechanism of natural selection required long time spans in order to modify species. From whom did Darwin get the concept of Earthʹs ancient age?

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#Question id: 29084

#Unit 10. Ecological Principles

Which of the following gases has the major contribution to global warming?

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#Question id: 5810

#Unit 8. Inheritance Biology

The main difference between the directed mutation theory and the random mutation theory is:

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#Question id: 23680

#Unit 13. Methods in Biology

Who won the Nobel Prize in 1993 for his work on site-directed mutagenesis?

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#Question id: 2327

#Unit 2. Cellular Organization

9 + 2 arrangement refers to the:

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#Question id: 12863

#General Aptitude

If a chord of length 16 cm is at a distance of 15 cm from the centre of the circle, then the length of the chord of the same circle which is at a distance of 8 cm from the centre is equal to