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प्रश्न
Differentiate protonephridia from metanephridia.
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उत्तर
| Sr. No. | Protonephridia | Metanephridia |
| 1. | Primitive kidneys are protonephridia | Tubular excretory structures are |
| 2. | These are found in flatworms. | These are found in annelids and molluscs |
संबंधित प्रश्न
Answer the following in detail.
Write a short note on artificial kidneys.
Choose the correct answer:
Physiologically urea is produced by the action of an enzyme ______________
Choose the correct answer:
Excess proteins are converted into urea in ____________
Give a simple definition of excretion.
Write about the excretory role of the lungs.
Explain the Term: Urinary bladder
Complete the following sentence with appropriate word:
The duct which transports urine from kidney to urinary bladder is ______.
State the Location: Urinary bladder
Write the functional activity of the following structure: Adrenal gland
Answer the following question.
Why are kidneys called 'retroperitoneal'?
Circle the odd one.
Differentiate the following.
Excretion and Secretion
The point where the ureter arises from the kidney to where it opens into the urinary bladder is about ____________ cm.
Identify the labels (A-F) in the given diagram of excretory system in human beings.
The Malpighian corpuscle lies in the______ of the kidney.
Flame cells are present in ______.
Which are the two main organic wastes present in urine?
Name the process and the organ which helps in removing the following wastes from the body.
- Carbon dioxide
- Undigested food
- Urine
- Sweat
Which blood vessel has largest amount of urea?
