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Evolution

One Word Answers

1. When did life appear on earth ?

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2. Give another name for origin of life from non living matter.

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Short Answer Type

3. What conditions were created by Miller in his experiment?

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4. Arrange the following substances in a proper sequence with regard to the formation of chemical constituents at the time of origin of life :

Sugar, methane, nucleic acid and amino acid.

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One Word Answers

5. What is the phenomenon called when the original drifted population becomes founders?

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What are the two key concepts of Darwinian Theory of Evolution

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7. What were the units of life according to the early Greek thinkers ?

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Short Answer Type

8. Mention the type of nutrition in the cells originated first during the origin of life.

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9. Which group of organisms were responsible for appearance of free oxygen in the atmosphere of the primitive earth ?

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10. What is meant by the term fossil ?

Fossils are remains of hard parts of life-forms found in rocks. Fossils are the remains or impression of a prehistoric plant or animal embedded in rock and preserved in petrified form.

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