What are the main excretory organs in humans?
Answer and explanation
Correct answer: Kidneys
The governing concept is the human excretory system and maintenance of internal balance. The kidneys receive blood, filter it through millions of nephrons, selectively reabsorb useful substances and remove excess water, salts and nitrogenous wastes in urine. Thus option A is the best answer because kidneys are the principal excretory organs. Lungs also remove carbon dioxide and water vapour, and skin can release sweat, but eyes and ears are not the main organs of excretion.
Frequently asked questions
What is the correct answer to this question?
Kidneys
Why is this the correct answer?
The governing concept is the human excretory system and maintenance of internal balance. The kidneys receive blood, filter it through millions of nephrons, selectively reabsorb useful substances and remove excess water, salts and nitrogenous wastes in urine. Thus option A is the best answer because kidneys are the principal excretory organs. Lungs also remove carbon dioxide and water vapour, and skin can release sweat, but eyes and ears are not the main organs of excretion.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Life Processes.
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