It is common for enriched grain products to have _____ added.
A) iron
B) calcium
C) vitamin B12
D) none of the above
Question 2
Which of the following organs are considered primary organs of the gastrointestinal tract?
A) mouth, small intestine, large intestine
B) mouth, liver, stomach
C) pancreas, gall bladder, kidney
D) heart, lungs, stomach