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Earn 100

The principal nitrogenous excretory compound in humans is synthesized
(a)In kidneys but eliminated mostly through liver.
(b)As well as eliminated by kidneys.
(c)In liver and also eliminated by the same through bile.
(d)In the liver, but eliminated mostly through kidneys.

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Important Questions on Excretory Products and Their Elimination
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Which one of the following options gives the correct categorization of animals according to the type of nitrogenous waste they give out?

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Which of the following pairs of organisms are uricotelic?

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Which of the following group contains uricotelic animals only?

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Which one of the following option shows a correct matching pair?
(i) | Man | Ureotelic |
---|---|---|
(ii) | Bird | Ammonotelic |
(iii) | Fish | Uricotelic |
(iv) | Frog | Uricotelic |

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The characteristic(s) common to urea, uric acid, and ammonia, is/are:
(i) They are nitrogenous wastes.
(ii) They all need a very large amounts of water for excretion.
(iii) They are all equally toxic.
(iv) They are produced in the kidneys.

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Match column I with II and select the correct option from the codes given below.
Column I | Column II | ||
---|---|---|---|
(a) | Nephridia | (i) | Crustaceans |
(b) | Malpighian tubules | (ii) | Annelids |
(c) | Antennal gland or Green glands | (iii) | Insects |

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Select the correct option representing the excretory organs present in (i) earthworm, (ii) centipede, (iii) prawn, (iv) flatworm.

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Which one of the following organisms is correctly matched with its excretory organs?
