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Mention two assumptions of Oparin and Ha...

Mention two assumptions of Oparin and Haldane with reference to 'Origin of Life'.

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The first from of life could have come from pre-existing non-living organic molecules.
Formation of life was preceded by cheymical evolution.
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OSWAAL PUBLICATION-QUESTION PAPER 2019-PART-D
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  2. What are Contraceptives? Explain four different non-surgical contracep...

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  3. What is incomplete dominance? Explain inheritance of flower colour in ...

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

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  5. What is the significance of BOD?

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  6. Give an example for a fungus found in Mycorrhiza

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  7. Explain the benefits of creating transgenic animals.

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

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

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  10. Write the schematic representation of spermatogenesis.

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

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  12. DNA replication is said to be semiconservative'. Why? Describe the exp...

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  13. Draw a neat labelled diagram of Miller's experiment

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

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

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

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

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

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