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we need enegy - Coggle Diagram
we need enegy
how do we breathe
the exchange of gasas in the body
how our diaphragms works
ribcage
diaphragm
lung
the respiratory system
mouth
trachea
nose
what happen to the food we eat
the stages of digestion
propulsion
absorptin
ingestion
the digestive system
chyme
salive
stomach
why does theheart beat
the circulatory sistem
plasma
platelets