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Why weeds and wild plants are not affect...

Why weeds and wild plants are not affected by insects and pests ?

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BEYOND PUBLICATION-EXCRETION-THE WASTAGE DISPOSING SYSTEM-EXERCISE
  1. Why weeds and wild plants are not affected by insects and pests ?

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  2. Earthworm excretes its waste material through .................. .

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  3. The dark coloured outer zone of kidney is called ………………… .

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  4. The process of control of water balance and ion concentration within o...

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  5. Reabsorption of useful product takes place in ............... part of...

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  6. Gums and resins are the ……………….. products of the plants.

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  7. Bowman's capsule and tubule taken together make a ................. .

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  8. The alkaloid used for malaria treatment is ........................ .

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  9. What is the principle involved in dialysis?

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  10. Rubber is produced from ...................... of Heavea braziliensis ...

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  11. Who performed the first kidney transplantation?

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  12. The structural and functional unit of human kidney is called ……

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  13. The excretory organ in cockroach

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  14. Which of the following is the correct path taken by urine in Q,lV body...

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  15. Malpighian tubules are excretory organs in

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  16. Major component of urine is

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  17. Special excretory organs are absent in

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  18. Which of the following hormones has direct impact on urination ?

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  19. Amber colour to urine due to

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  20. Sequence of urine formation. in nephron is

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  21. Part of the nephron that exists in outer zone of ~dney

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