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Assertion : In servere cases the lips a...

Assertion : In servere cases the lips and finger nails may turn gray to bluish in colour in common cold.
Reason : Dysentery plague , diphtheria and typhoid are viral diseases.

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ALLEN-HUMAN HEALTH AND DISEASE-Question
  1. Health does not simply mean absence of disease or physical fitness why...

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  2. Write any two types of organism which can act as pathogens

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  3. Assertion : In servere cases the lips and finger nails may turn gray ...

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  4. Indiscrimate diagnostic practices using X- rays etc, should be avoided...

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  5. In what way is monocyte a cellular barrier with reference to immunity ...

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  6. How do cytokine barriers help in evading viral infections ?

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  7. Why sharing of injection needles between two individuals is not recomm...

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  8. What is the mechanism by which the AIDS virus causes deficiency of imm...

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  9. How is a cancerous cell different from a normal cell?

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  10. Explain what is meant by metastasis.

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  11. Do you think that friends can influence one to take alcohol/drugs? If ...

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  12. List the symptoms of Ascariasis. How does a healthy person acquire thi...

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  13. Name the host and the site where the following occur in the life cycle...

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  14. Name the two types of immune systems in a human body. Why are cell med...

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  15. Write the scientific names of the causal organisms of elephantiasis an...

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  16. Identify A, D, E and F in the diagram of an antibody molecule given be...

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  17. Differentiate between benign and malignant tumours

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  18. (a) Highlight the role of thymus as a lymphoid organ. (b) Name the c...

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  19. Write the events that take place when a vaccine for any disease is int...

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  20. A patient showed symptoms of sustained high fever, stomach pain and co...

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