AP BIOLOGY

Detailed explanation-1: -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-2: -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-3: -A monogastric organism has a simple single-chambered stomach (one stomach). Examples of monogastric herbivores are horses and rabbits. Examples of monogastric omnivores include humans, pigs, hamsters and rats. Furthermore, there are monogastric carnivores such as cats.

Detailed explanation-4: -Humans, swine, rabbits, chickens and horses all have a simple stomach, which is also known as a monogastric digestive system. Carnivores and omnivores have monogastric digestive systems.

Detailed explanation-5: -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.