Human Body Systems and Their Functions MCQs

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1. Which system of the human body is responsible for transporting oxygen and nutrients?





2. What is the main function of the respiratory system?





3. Which organ is the control center of the nervous system?





4. The skeletal system primarily provides:





5. The muscular system works closely with which system to allow movement?





6. Which system is responsible for breaking down food and absorbing nutrients?





7. The kidneys are part of which body system?





8. What is the function of the endocrine system?





9. The largest organ of the human body is:





10. Which system defends the body against infections and diseases?





11. The primary function of the lymphatic system is to:





12. Which body system is responsible for producing red blood cells?





13. What part of the body is mainly responsible for filtering toxins from the blood?





14. The main organ of the circulatory system is:





15. The function of the reproductive system is to:





16. What is the function of the nervous system?





17. Which system includes the lungs and helps in breathing?





18. The pancreas is a part of which two systems?





19. Which system helps in controlling body temperature, sweating, and protecting internal organs?





20. The small intestine is the main site for:





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