Question

Which of the following eliminates carbon dioxide from the body?

• A. Circulatory system
• B. Respiratory system
• C. Excretory system
  
• D. A and B
  
• E. A, B and C
  

Answer 1

The correct option is D A and B

• Carbon dioxide is the waste gas that is produced when carbon is combined with oxygen as part of the body's energy-making processes.
• The lungs and respiratory system allow oxygen in the air to be taken into the body, it also helps the body to get rid of carbon dioxide in the air breathed out.
• When the blood from the heart flows through the capillaries and collects oxygen from the alveoli. At the same time, carbon dioxide passes out of the capillaries and into the alveoli. These blood brings oxygen to the body cells and takes away their carbon dioxide. Hence, the circulatory system and respiratory system eliminates carbon dioxide from the body.

So, the correct answer is 'A and B'.