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%
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Which of the following is not the primary function of protonephridia?

1. Ionic volume regulation

2. Fluid volume regulation

3. Osmoregulation

4. Excretion

Subtopic:  Nitrogenous Excretory Products |
From NCERT
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Annelids have which of the following excretory organs?

 

1.Nephridia

 

2.Protonephridia

 

3.Flame cells

 

4.All of these

Subtopic:  Nitrogenous Excretory Products |
From NCERT
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Excretory function of crustacea is performed by

1.Antennal glands

2.Green glands

3.Both A and B

4.Malpighian tubules

Subtopic:  Nitrogenous Excretory Products |
 86%
From NCERT
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The insects, the cockroach will have which of the following excretory structures?

1.Malpighian body

2.Malpighian corpuscles

3.Malpighian capsule

4.Malpighian tubules

Subtopic:  Nitrogenous Excretory Products |
 81%
From NCERT
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Human excretory system does not involve

1.Urethra

2.Vestibule

3.Bladder

4.Kidneys

Subtopic:  Human Kidney: Functions |
 95%
From NCERT
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Kidneys are situated in

 

1.Between the last thoracic and 5th lumbar vertebra

 

2.Between the last thoracic and 3rd lumbar vertebra

 

3.Between the last thoracic and 2nd lumbar vertebra

 

4.Between the last thoracic and first lumbar vertebra

Subtopic:  Human Kidney: Functions |
 82%
From NCERT
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 Which of the following options shows the incorrect measurements of an adult human kidney?

1.10-12 cm in length

2. Kidney weigh 240- 340 g

3. Thickness of kidney is 2-3 cm

4. 5-7 cm in width

Subtopic:  Human Kidney: Functions |
 86%
From NCERT
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Medullary pyramids project into

 

1.Calyces

 

2.Medulla

 

3.Cortex

 

4.Both cortex and medulla

Subtopic:  Human Kidney: Location & Cut Section |
 72%
From NCERT
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If one goes from inside to outside then which of the following parts comes first?

1.Hilum

2.Calyces

3.Pelvis

4.Cortex

Subtopic:  Human Kidney: Location & Cut Section |
From NCERT
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