General Knowledge · Biology
मानव शरीर में सबसे व्यस्त या लगातार सक्रिय रहने वाला अंग कौन-सा है?
- 1फेफड़े
- 2हृदय✓
- 3यकृत
- 4मस्तिष्क
सही उत्तर देखें
हृदय
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