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GIRD QUESTION OF SAINS (BIOLOGY), March, 8th 2012 FOR SEVEN GRADER OF RSBI ACADEMIC YEAR 2011-2012

1. Mention the unit of ecosystem

2. The biotic components which function to suplly oxygen in this ecosystem

3. Mention the example of biotic component dependency to abiotic components

4. Count the percentage of energy transferred in each trophic level in pyramid energy

5. Mention the example of interactions among the biotic components

6. The processes by which carbondioxide is removed and returned to the atmosphere make up the … cycle

7. Explain the meaning of an extinct species

8. Mention the human activities for reduce the scarce anmial  

9. Mention the example of in situ conservation

10. Mention the effort to prevent the extinction of biodiversity resources in Indonesia

11. Mention the impacts from extinction living things

12. Mention the relationship human population between food production

13. Mention the cause decrease in fresh water in big cities

14. Mention the relationship between high density population affects the availability of natural resources

15. Count the the population growth, if cities A have the death rate is 15 and the birth rate is 25?

16. Count the average population density of the plant if the data obtained from an investigation into the distrubition of plant. The area of 1 plot is 10 m2

Pilot

I

II

III

IV

Number of Plant

5

10

15

20

17. Mention the factors cause a high population density

18. Count the population of an area in 2012 is 450 million. While the population growth rate is 1.2%, How many of the population next in 2014? (use these formula Pt = Po (1 + r)n)

19. Explain three ways carbon and nitrogen returned to the atmosphere!

20. Make a food weeb

3 responses to “GIRD QUESTION OF SAINS (BIOLOGY), March, 8th 2012 FOR SEVEN GRADER OF RSBI ACADEMIC YEAR 2011-2012

  1. lathifah tria gusnita Mei 2, 2012 pukul 12:22 pm

    soalnyaaaaaaaaaaa manaaa? T.T

    Suka

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AKHMAD SUDRAJAT

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