AP BIOLOGY

Detailed explanation-1: -A monogastric is an animal with a single-compartmented stomach. Examples of monogastrics include humans, poultry, pigs, horses, rabbits, dogs and cats. Most monogastrics are generally unable to digest much cellulose food materials such as grasses.

Detailed explanation-2: -The pig has a digestive system which is classified as monogastric, or nonruminant. Humans also have this type of digestive system. They have one stomach (mono = one, gastric = stomach). The monogastric differs from that of a polygastric, or ruminant, digestive system found in cattle and sheep.

Detailed explanation-3: -Horse Science. Horses and rabbits are modified monogastric herbivores. Horses are able to utilize large amounts of roughage due to their relatively large cecum. The cecum is a section of the colon where digestive bacteria break down roughage.

Detailed explanation-4: -Ruminants have stomachs that are divided into compartments, whereas horses have simple stomachs with only one compartment. Animals with simple stomachs are classified as monogastrics, including horses, pigs, dogs, cats and humans.

Detailed explanation-5: -Monogastric herbivores, such as rhinoceroses, horses, and rabbits, are not ruminants, as they have a simple single-chambered stomach.