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1.
Technically, due to the digestive system being one long tunnel that runs
from your mouth to your anal canal and doesn’t need to be cut open to be
reached, it is therefore the outside of your body
2.
Food contains all necessary nutrients for our body. These nutrients help
the body to do
all the
day
to
day
activities. Nutrients help the brain to develop, thus helping the brain to
give command to the body to work.
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