Which of the following nitrogenous wastes is least toxic?

1.Uric Acid

2.Urea

3.Creatinine

4.Ammonia

Subtopic:  Nitrogenous Excretory Products |
 86%
From NCERT
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Ammonotelic organisms are not

 

1.Bony Fishes

 

2.Aquatic Amphibians

 

3.Aquatic Insects

 

4.Marine fishes

Subtopic:  Nitrogenous Excretory Products |
 73%
From NCERT
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Ammonotelic organisms excrete out

 

1.Ammonia

 

2.Ammonium ions

 

3.Ammonium sulfate

 

4.Ammonium nitrate

Subtopic:  Nitrogenous Excretory Products |
 63%
From NCERT
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The production of urea and uric acid is because of

1. Conservation of water

2. Terrestrial adaptation

3. Terrestrial adaptation for conservation of water

4. Advancement of organism in comparison to all water animals

Subtopic:  Nitrogenous Excretory Products |
 73%
From NCERT
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Ammonia is converted into urea in which of the following organs of Ureotelic organisms?

 

1.Liver

 

2.Kidney

 

3.Urinary bladder

 

4.Gut

Subtopic:  Nitrogenous Excretory Products |
 86%
From NCERT
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Urea remains in the kidney matrix of which of the following organisms?

 

1.Aquatic Insects

 

2.Aquatic amphibians

 

3.Bony fishes

 

4.Marine fishes

Subtopic:  Nitrogenous Excretory Products | Osmoregulation |
 78%
From NCERT
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Kidney matrix retains some amount of urea to

 

1.Maintain a desired osmolarity

 

2.Maintain metabolism

 

3.Maintain balance of the body

 

4.Maintain micturition

Subtopic:  Concentration of Urine: II | Concentration of Urine |
 90%
From NCERT
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Which of the following is not uricotelic?

1.Reptiles

2.Birds

3.Land snails

4.All insects

Subtopic:  Nitrogenous Excretory Products |
 76%
From NCERT
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The invertebrates have which of the following excretory structures?

1.Simple Tubular forms

2.Complex tubular organs

3.Kidneys

4.Interstitial lamina

Subtopic:  Nitrogenous Excretory Products |
 84%
From NCERT
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Which of the following has not the protonephridia as an excretory organ?

1. Rotifers

2. Amphioxus

3. Planaria

4. Earthworm

Subtopic:  Nitrogenous Excretory Products |
 73%
From NCERT
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