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Leaves are to plants what lungs are to animals

Leaves are to plants what lungs are to animals

Oxygen is taken into our lungs when we breathe

The brain was not like the liver or the lungs

Smoking does damage your lungs

Smoking has affected his lungs

Smog is the enemy of healthy lungs

Incidentally, that the gills of fish are bright red is because there are many 'capillary vessels' collected there, the same as for lungs

Parks are to the city what lungs are to the animal