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Why nerve impulses travel faster in medu...

Why nerve impulses travel faster in medullated nerve fibres?

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True or False : Nerve impulses travel slower in a myelinated nerve fibre than in a non-myelinated nerve fibre.

What is nerve fibre?

What is nerve impulse?

Differentiate: Medullated nerve fibres and non-medullated nerve fibres.

MODERN PUBLICATION-STRUCTURAL ORGANISATION IN ANIMALS-EXAMPLE
  1. Name a calcified cartilage. Why it is present in frog but not in man?

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  2. Croaking sound is louder in male frog than female. Give reason.

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  3. Why nerve impulses travel faster in medullated nerve fibres?

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  4. Give the reasons for the following statements : Blood is called river ...

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  5. Give two differences between male and female cockroach.

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  6. What is function of genital papillae in earthworm?

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  7. Which corpuscles of blood act as soldiers and scavengers of body?

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  8. Name the tissue that lines the fallopian tubes. State any one advantag...

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  9. Give the number, position and function of copulatory papillae in earth...

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  10. Differentiate between a male and a female frog.

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  11. Discuss hearts in earthworm.

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  12. What will happen when human RBCs are placed in 2% NaCl solution?

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  13. Differnetiate between single-unit and multi-unit smooth muscles.

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  14. Identify A to D and mention one location and one function in the body:

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  15. Identify the tissues 1,2 and 3

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  16. Fill in the blanks: Muscles are associated with locomotion and are i...

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  17. Differentiate cockraoch and frog the their position to heart and organ...

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  18. Find out the false statements and correct them by changing only underl...

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  19. Find out the false statements and correct them by changing only underl...

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  20. The cells lining blood vessels belong to the category of

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