Page 91 - EM BIOLOGY NOTES 10TH CLASS PSR DIGITAL BOOKS

15. Who proved that bodily changes are not inherited ?
16. Who proposed “Natural selection”?
17. What was the name of ship in which darwin travelled ?
18. In which birds did Darwin observe diversity in structure in galapogos islands ?
19. Who wrote the book ‘principles of geology’ ?
20. What are homologous organs ? Give some examples ?
21. Which organs are known as analogous organs ?
22. What are fossils ?
23. What is the study of fossils ?
24. By which method the age of fossils can be found ?
25. Which isotopes are used in carbon dating method ?
26. Where was ketosaures, fossil of the dinosarus found ?
27. What is the connecting link between aves and reptiles ?
28. How many vestigial organs are there in human being ?
29. Which vestigial organ is attached to the large intestine in man ?
30. Give some examples for vestigial organs ?
9. OUR ENVIRONMENT
1. What happens in the number of organisms from the producers to consumers in a food chain ?
2. What is the main source of energy of an ecosystem ?
3. What is niche ?
4. Who introduced ecological pyramid for the first time ?
5. Where are the producers represented in the pyramid ?
6. What is biomass ?
7. Expand BOD ?
8. What is the process of entry of pollutants into a food chain called ?
9. What is the tendency of pollutants to concentrate as they move from one trophic level to the next level ?
10. Which committee did the Government of India introduced to protect the kolleru lake ?
11. What are the heavy metals found in Edulabad Reservoir ?
12. What disease is caused due to the mercury poision ?
13. In which country did sparrow campaign happen ?
14. A farmer introduces some reptiles to prevent insects in his field. What is this method ?
15. Which is the best method for prevention of pests ?
10. NATURAL RESOURCES
1. What is the alternative method used to conserve the ground water level ?
2. What does ICRISAT stand for ?
3. Which methods are suitable for the farmers with low water resources ?
4. Which plants should farmers grow on field bunds to make the soil rich in nitrogen ?
5. Expand BBF ?
6. What is UNDP ?
7. What is FAO ?
8. Give some examples for renewable resources ?
9. What do the ways of environment that ensure resources for the future lead to ?
10. What is contour strip cropping ?
11. Where are fossil fuels produced ?
12. Give some examples for fossil fuels ?
13. Which plant seeds are used in the production of bio diesel ?
14. What is meant by 4R ?
15. What does this logo indicate ?

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