to send message to other organs, to pump blood around the body, to take the Oxygen from air outside, To absorb the nutrients and vitamins , To change food into small part, , to send message to other organs, to pump blood around the body, to take the Oxygen from air outside, To absorb the nutrients and vitamins , To change food into small part, , to send message to other organs, to pump blood around the body, to take the Oxygen from air outside, To absorb the nutrients and vitamins , To change food into small part, , to send message to other organs, to pump blood around the body, to take the Oxygen from air outside, To absorb the nutrients and vitamins , To change food into small part, , to send message to other organs, to pump blood around the body, to take the Oxygen from air outside, To absorb the nutrients and vitamins , To change food into small part, , to send message to other organs, to pump blood around the body, to take the Oxygen from air outside, To absorb the nutrients and vitamins , To filter the pee, , to send message to other organs, to pump blood around the body, to take the Oxygen from air outside, To protect human organ inside the body , To filter the pee.

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