LONG ANSWER QUESTIONS (Write the answers in your notebook)
1. Define excretion. Write the four organs of human urinary system in their correct sequence.
2. Why is excretion necessary in living beings?
3. What is meant by osmoregulation ?
4. Describe the structure of kidney with the help of a labelled diagram
5. What are the two ways by which a person can get relief in case of kidney failure ?
6. Draw a diagram of human excretory system and label the following parts:
Kidney, ureter, urinary bladder and urethra.
7. How are kidney stones formed ?
8. What are the symptoms of a urinary tract infection?
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Answer:
1. the process of elimination of unwanted and toxic products from the body is called excretion
the four organs of the urinary system :
1. kidney
2.uretet
3.urinary bladder
4.urethra
2.
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