How is double circulation in humans related to high energy demand?
Answer and explanation
Correct answer: It delivers oxygenated blood to the body more efficiently
Double circulation means that blood passes through the heart twice in one complete circuit: once between the heart and lungs, and once between the heart and the body. The four-chambered heart keeps oxygenated and deoxygenated blood largely separate, so tissues receive blood with a high oxygen concentration. This supports efficient aerobic respiration and ATP production for high energy needs. Option A is correct.
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What is the correct answer to this question?
It delivers oxygenated blood to the body more efficiently
Why is this the correct answer?
Double circulation means that blood passes through the heart twice in one complete circuit: once between the heart and lungs, and once between the heart and the body. The four-chambered heart keeps oxygenated and deoxygenated blood largely separate, so tissues receive blood with a high oxygen concentration. This supports efficient aerobic respiration and ATP production for high energy needs. Option A is correct.
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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