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body systems (body systes (mouth, small intestine, anus, esophagus,…
body systems
body systes
mouth
small intestine
anus
esophagus
stomach
large intestine
cicuratoy system
arteries
veins
vins
capillaries
arteries
excretory systems
kidneys
urethra
bladder
ureters
respiratory systems
aveoli
blood capillaries
oxygen goes in
carbon dioxside goes out