The part labeled III is used for
A.
Ingesting food
B.
Grinding food particles
C.
Storing food materials
D.
Absorbing food nutrients
Correct answer is B
The gizzard, is a part of the digestive tract of birds often referred to as the mechanical stomach, the gizzard is made up of two sets of strong muscles that act as the bird's teeth and has a thick lining that protects those muscles. Consumed feed and the digestive juices from the salivary glands and proventriculus pass into the gizzard for grinding, mixing, and mashing.