What animal digestive system food is mechanically broken down in the gizzard with the help of grit of stones 

What animal digestive system features a single, simple, non-compartmentalized stomach

What animal digestive system has enzymes produced by the animal’s own digestive system break down food

What animal digestive system has a complex system with a stomach divided into four compartments

What animal digestive system has a rumen, reticulum, omasum, abomasum

What animal digestive system food is fermented by microbes in the rumen and reticulum before being regurgitated, rechewed, and re-swallowed (rumination) to aid digestion

What animal digestive system has a simple stomach that can digest large amounts of roughage

What animal digestive system is similar to ruminants but lack the four compartments

What animal digestive systemrely on an enlarged cecum and large intestine (hindgut) for microbial fermentation to break down plant matter

What animal digestive system is specialized for birds, with no teeth; food is stored in a crop, then moved to a proventriculus for gastric juices, and finally a gizzard for mechanical grinding