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_________ is the most important organ of our body.
The brain is protected by the ________.
The brain is connected to all the other parts of the body through the __________.
The spinal cord contains thin, thread-like ________ that run all around the body.
Thin, thread-like tubes that carry messages to and from the brain is called _________.
The brain controls the body parts through the ________.
The brain, the spinal cord and the nerves form our __________.
All our actions, such as hearing, seeing, reading, dancing, are controlled by the __________.
Special body parts through which we come to know about our world is called _________.
We have _______ sense organs.
How many kidneys does a human have?
________ clean the blood and make urine.
The ________ carry the urine from the kidneys to the bladder.
The urine is stored in the __________ before being passed out.
When we breathe out, carbon dioxide is removed from the body by the ________.
Excess water and salt are removed from the body by the skin in the form of __________.
The __________ system helps the living organisms produce babies.