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Water hyacinth floats on water surface. ...

Water hyacinth floats on water surface. Explain.

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Water hyacinth is an aquatic plant having aircontaining aerenchyma in its spongy petiole and leaves which gives buoyancy and helps in floating on water surface.
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MTG IIT JEE FOUNDATION-TISSUES -EXERCISE (Subjective Questions (Short Answer Type))
  1. Animals of colder regions and fishes of cold water have thicker layer ...

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  2. Differentiate between epithelial and connective tissues.

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  3. Water hyacinth floats on water surface. Explain.

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  4. Which structure protects the plant body against the invasion of parasi...

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  5. Why is epidermis important for the plants?

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  6. Why are xylem and phloem called complex tissues? How are they differen...

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  7. Name any two simple and two complex permanent tissues in plants.

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  8. Differentiate between meristematic and permanent tissues in plants.

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  9. Name the plant tissue found in the husk of a coconut and also identify...

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  10. What types of cells are found in sclerenchyma and parenchyma? Write th...

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  11. A student of standard IX gave the functions of the following cells/tis...

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  12. A student of standard IX gave the functions of the following cells/tis...

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  13. A student of standard IX gave the functions of the following cells/tis...

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  14. A student of standard IX gave the functions of the following cells/tis...

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  15. What will happen if the skin epithelium is not stratified?

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  16. What will happen if stratified squamous epithelium lines the blood ...

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  17. Give one reason why The blood is called connective tissue ?

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  18. Give one reason why Muscles contain contractile proteins?

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  19. Give one reason why Muscles of heart are involuntary?

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