Select "Digestive" for an explanation of the various body organs involved in breaking food down into small enough parts so that the nutrients can be absorbed through the intestinal walls into the circulatory system.
(the various body organs; involved; in breaking food down into small enough parts) (the nutrients; can be absorbed; through the intestinal walls; into the circulatory system)
the various body organs the nutrients
involved can be absorbed
in breaking food down into small enough parts
through the intestinal walls into the circulatory system