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Which of the following gas was not prese...

Which of the following gas was not present in early earth atmosphere ?

A

Ammonia

B

Oxygen

C

Hydrogen sulphide

D

Methane

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BETOPPERS-HEREDITY & EVOLUTION-WORKSHEET 2
  1. In evolutionary terms, we have more in common with

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  2. The human species has genetic roots in :

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  3. Which of the following gas was not present in early earth atmosphere ?

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  4. A gradual change, over a long period, in a form of life is known as :

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  5. Scientists believe that all life originated in :

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  6. According to scientists, aves have evolved from :

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  7. The theory of evolution of species by natural selection was given by

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  8. The term 'father of genetics' is used for the scientist :

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  9. One of the following traits cannot be inherited. This one is :

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  10. Only one of the following characteristic of the parents can be inheri...

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  11. Which of the following statement is incorrect with respect to variat...

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  12. One of the following traits of the parents cannot be passed on to thei...

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  13. Some dinosaurs had feathers although they could not fly but birds have...

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  14. Select the incorrect statement from the following:

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  15. New species may be formed if : (i) DNA undergoes significant change...

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  16. According to the evolutionary theory, formation of a new species is g...

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  17. Some of the important fossils which have been studied are those of org...

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  18. The farmers have been cultivating a food plant X for over two thousand...

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  19. The farmers have been cultivating a food plant X for over two thousand...

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  20. The farmers have been cultivating a food plant X for over two thousand...

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