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Many fresh water animals can not survive...

Many fresh water animals can not survive in marine environment. Explain.

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XII BOARDS PREVIOUS YEAR-XII BOARDS-SET-III
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  3. Many fresh water animals can not survive in marine environment. Explai...

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  7. A DNA segment has a total of 2,000 nucleotides, out of which 520 are a...

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  8. A flower of tomato plant following the process of sexual reproduction ...

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  9. Explain the development of a secondary oocyte ( ovum) in a human femal...

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  10. Suggest any two possible tratments that can be given to a patient exhi...

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  11. A liverwort plant is unable to complete its life- cycle in a dry envio...

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  12. The F(2) progeny of a monohybrid cross showed phenotypic and genotypi...

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  13. Why are some seeed refferred to as apomictic seeds ? Mention one adant...

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  14. 'A very small sample of tissue or even a drop of blood can help determ...

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  15. (a) How are Mendelian inheritance, polygenic inheritance arid pleiotro...

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  16. (a) Draw a labelled diagram of a "replicating fork" showing the polari...

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  17. given an example of a codon having dual function .

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  18. Distinguish between the roles of flocks and anaerobic sludge diges...

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  19. plants that inhabit a rain - forest are not found in a wetland ,...

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