The part of the alimentary system of a bird where grinding of maize occurs is the
Answer Details
The part of the alimentary system of a bird where grinding of maize occurs is the gizzard. The gizzard is a muscular part of the bird's stomach that contains small stones and pebbles. When a bird ingests food, the food is stored in the crop, which is a pouch-like structure located at the base of the bird's neck. From there, it moves to the stomach, where digestive enzymes begin to break it down. The food then passes into the gizzard, where the stones and pebbles help to grind it into smaller pieces. The gizzard's strong muscular walls then contract and help to further break down the food into a more digestible form. This process is important for birds that consume hard seeds, like maize, which are difficult to digest without the aid of grinding. Therefore, the gizzard is a critical part of a bird's digestive system that helps them extract nutrients from their food.