How do the liver and pancreas aid digestion?
A
They mechanically break down food.
B
They add nutrients to digested food.
C
They release saliva in the mouth.
D
They secrete digestive enzymes.
D
They secrete digestive enzymes.
A
They mechanically break down food.
B
They add nutrients to digested food.
C
They release saliva in the mouth.
D
They secrete digestive enzymes.
They secrete digestive enzymes.