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Protonephridia or flame cells or solenoc...

Protonephridia or flame cells or solenocytes are the excretory structures in

A

platyhelminthes/flatworms

B

rotifers and some annelids

C

cephalochoradte(branchiostoma)

D

all of the above

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The correct Answer is:
D
 Protonephridia or flame cells or solenocytes are the excretory structures in Platyhelminthes/flatworms, Rotifers, some annelids and Cephalochordate(Branchiostoma).
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A2Z-EXCRETORY PRODUCTS AND THEIR ELIMINATION-Section A : Topicwise Questions Topic 1 :human Excretory System
  1.  Major form(s) of nitrogenous wastes excreted by the animals is/ areÂ

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  2. Read the following statements and find out the incorrect statements. ...

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  3. Protonephridia or flame cells or solenocytes are the excretory structu...

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  4. In humans ,excretory system consists of a. Kidney " " b.Urinary b...

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  5. which one of the following statements is incorrect?

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  6. Recognise the figure and find out the correct matching .

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  7. Kidneys are reddish brown and Â

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  8. Kidneys are situated close to the dorsal inner wall of the abdominal c...

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  9. Length, width and thickness of the adult human kidney are approximatl...

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  10. Average weight of kidney is about

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  11. Towards the centre of the inner concave surface of the kidney a notch ...

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  12. Each nephron has

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  13. Renal tubule begins with the

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  14. The DCTs of many nephrons open into a straight tube called

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  15. Many collecting ducts converge and through medullary pyramids in the ...

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  16. In majority of nephrons the loop of Henle is too short and extends onl...

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  17. In majority of nephrons the loop of Henle is too short and extends onl...

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  18. Recognise the figure and find out the correct matching .

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  19.  The efferent arteriole emerging from the glomerulus forms a fine cap...

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  20. Vasa recta is absent or highly reduced in a

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