Which two systems work together to deliver oxygen and remove carbon dioxide in humans?
Answer and explanation
Correct answer: Respiratory system and circulatory system
The governing concept is coordination between respiratory and circulatory systems. The respiratory system exchanges gases between air and blood at the alveoli: oxygen enters the blood and carbon dioxide leaves it. The circulatory system, with haemoglobin in red blood cells, transports oxygen to tissues and carries carbon dioxide back to the lungs for exhalation. Therefore option A is correct; the other pairs do not perform this complete gas-transport function.
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What is the correct answer to this question?
Respiratory system and circulatory system
Why is this the correct answer?
The governing concept is coordination between respiratory and circulatory systems. The respiratory system exchanges gases between air and blood at the alveoli: oxygen enters the blood and carbon dioxide leaves it. The circulatory system, with haemoglobin in red blood cells, transports oxygen to tissues and carries carbon dioxide back to the lungs for exhalation. Therefore option A is correct; the other pairs do not perform this complete gas-transport function.
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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