12. It is located in the head. It helps us to think.
13. This organ pumps blood to the other organs of our body
14. Number of muscles in our body:
15. These are two in number and located in our abdomen:
16. Lungs and nose are connected through this pipe:
17. A simple form of exercise that ensures that more
oxygen is taken in during inhalation:
18. The harmful substances that get added to
the environment:
19. The belly contracts and goes in during this process:
20. This system has nose, windpipe and lungs:
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Answer: 12. brain
13. heart
14. about 600.
15.kidney
16. wind pipe
17. pushing out
18. hazardous substances
19. inhalation
20. respiratory system
hope it helps you
tq
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