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प्रश्न
The excretory organs in an earthworm are:
(a) nephridia
(b) nephrons
(c) raphides
(d) ureters
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उत्तर
(a) nephridia
In earthworm, the main excretory organs are nephridia. It functions like a kidney.
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संबंधित प्रश्न
The kidneys in human beings are a part of the system for ______.
Why is it necessary to excrete waste products?
The nephrons discharge their urine at ______.
The given diagram represents a nephron and its blood supply. Study the diagram and answer the following questions:
(i) Label parts 1, 2, 3 and 4.
(ii) State the reason for the high hydrostatic pressure in the glomerulus.
(iii) Name the blood vessel which contains the least amount of urea in this diagram.
(iv) Name the two main stages of urine formation.
(v) Name the part of the nephron which lies in the renal medulla.
Blood in the renal artery or renal vein (Which one has more urea ?)
What gaseous waste products are excreted by plants?
Fill in the following blank with suitable word:
Gums and resins are the .......... products of plants.
What does the bladder in our body do?
In humans, urea is formed in
One of the following sets of body parts or substances or processed, pick out the one item which overall includes the remaining foir.
Skin, liver, lungs, kidneys, excretion.
In summer the urine is slightly thicker than in winter explain the reason.
Choose the correct answer:
A condition of failure of kidney to form urea is called ____________
Name the Following
The structural and functional units of kidney
Name the Following
The process by which kidneys regulate the water content of the body.
Write the functional activity of the following structure: Renal artery
Choose the Odd One Out:
Choose the correct option.
What is micturition?
Identify the correct labels for A and B in the following diagram
The main nitrogenous waste formed in the human body:
Give reason:
Excretion is a necessary process of our body.
