They both have only one stomach, and primarily pertain to the differences in digestive systems between mammals, not avians, reptiles or amphibians. Ruminants have a four-chambered stomach, whereas non-ruminants have a simple stomach.
The similarities of a ruminant and a non-ruminant digestive system is that they all have only one stomach, and the same organs that make up the whole digestive system complex. The difference between a ruminant and a non-ruminant is that a ruminant has four chambers in that stomach and a non-ruminant has a simple stomach (one stomach comprising of one chamber).
The stomach of a ruminant is called rumen
A monogastric system (human, cats and dogs) consists of a single compartment stomach. A ruminant system (cattle, sheep) consists of a complex 4 chamber compartment stomach. Both use bile secreted by the liver and stored by the gall bladder while a nonruminant (rabbits, horses) system does not contain a gall bladder. A ruminant "stomach" consists of the rumen (largest compartment of the stomach where most of the fermentation occurs), the reticulum (some fermentation occurs here, also contains folds which help catch foreign objects that are ingested), the omasum where food particles are ground down into a paste and the abomasum which is considered the "true stomach" where nutrients are absorbed.
This means it does not chew a cud. Having a one chamber stomach.
a stomach of a ruminant is called monro declined octea
A monogastric has one stomach eg horse or pig and a ruminant eg cow, sheep and goat, has four compartments to its stomach and chews its cud.
Abomasum is called as the true stomach in the ruminant digestive system.
A monogastric has only one stomach whereas with the ruminant its stomach is made up of four compartments - the rumen, reticulum, omasum and abomasum.
Is a koala a non-ruminant? Yes, non-ruminant means "having one stomach," if thekoala wasn't ruminant, he would have four.
Omasum is the smallest chamber of stomach.