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Give scientific reasons: Tobacco smokin...

Give scientific reasons:
Tobacco smoking causes cancer.

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CHETANA PUBLICATION-MAS04-EXERCISE
  1. Fill in the blanks: The cyclical flow of nutrients within an ecosyst...

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  2. Blood is a complex tissue.

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  3. Give scientific reasons: Tobacco smoking causes cancer.

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  4. Give scientific reasons: Endocrine glands are also called ductless g...

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  5. Is it right to avoid living with a person suffering from genetic disor...

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  6. Distinguish between simple tissues of plants and complex tissues of pl...

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  7. What are the difficulties in using refracting telescopes?

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  8. What are the different things included in solid waste?

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  9. Draw a neat labelled diagram of structure of chromosome.

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  10. What is white revolution? What benefits did it bring?

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  11. Blood is a complex tissue.

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  12. Sometimes, while eating we bite our own finger or tongue by mistake.

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  13. Sometimes, we choke while eating in a hurry.

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  14. Injury to the medulla oblongata causes sudden death-Explain.

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  15. Describe the structure of DNA molecule as proposed by Watson and Crick...

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  16. Explain the location, structure and function of Adipose tissue.

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  17. Answer the following question: Why are optical telescope located in u...

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  18. Write short notes: Reflex action

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  19. Write short notes on: Sickle-cell anaemia: Symptoms and treatment.

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  20. Write the application of biotechnology in floriculture

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