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What is the significance of BOD?...

What is the significance of BOD?

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BOD is a measure of the organic matter present in the water.
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OSWAAL PUBLICATION-SOLVED PAPER II PUC ANNUAL EXAMINATION 2019-PART-D
  1. What is incomplete dominance? Explain inheritance of flower colour in ...

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  2. Explain the role of three organisms as biocontrol agents.

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  3. What is the significance of BOD?

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  4. Give an example for a fungus found in Mycorrhiza

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  5. List the benefits of transgenic animals.

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  6. Tropical region has greater biodiversity than temperate region. Justif...

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  7. The use of CNG is better than petrol or diesel. Give four reasons.

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  8. What is spermatogenesis? Give a brief account of spermatogenesis.

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  9. Write the two events that occur in the ovary and uterus during the fol...

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  10. Why DNA replication is called semiconservative ?

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  11. With the help of neat labelled diagram explain Stanley Miller's experi...

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  12. Mention two assumptions of Oparin and Haldane with reference to 'Origi...

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  13. Name the technology that can successfully increase the herd size of ca...

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  14. Mention four 'Evil Quartet which cause depletion of biodiversity.

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  15. Write two suspended activities in animals against abiotic stresses wit...

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  16. Among vertebrates, which group of animals has the highest number in gl...

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  17. What is megasporogenesis? Explain the development of eight nucleate em...

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  18. What are Contraceptives? Explain four different non-surgical contracep...

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  19. What is incomplete dominance? Explain with examples.

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  20. Explain the role of three organisms as biocontrol agents.

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