Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

1. When did life appear on earth ?

996 Views

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

771 Views

Miller created electric discharge in a closed flask that contained CH_4,NH₃, H₂ and water vapour at high temperature like 800

° C

708 Views

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.

752 Views

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

733 Views

What are the two key concepts of Darwinian Theory of Evolution

200 Views

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

155 Views

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

176 Views

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

169 Views

10. What is meant by the term fossil ?

210 Views