Mouth ,lungs ,and stomach
No the organs in the digestive system are not made of some of the organs, like the stomach, have muscles covering the inside of it to help push the food through.
There are two different organs which are part of the digestive system and which are responsible for breaking down some types of nutrients, these being the stomach and the small intestine. The digestive system also includes other organs but those do not break down nutrients.
The space is called the coelum, and provides cushioning of the digestive system in earthworms and some other simple animals. It allows the organs to function independently of the external structures.
The digestive system comprises of organs that work together in order to ensure that food is properly processed through the body. Examples of such organs include the stomach and the intestines.
Some of the major organs in the Digestive System are the: Esophagus, Stomach, Duodenum, Small Intestines, Large Intestines(Colon), Pancreas, Gallbladder, Rectum, and Anus. Edited by Dylan Dang
The different is that the human start they digestive system from the mouth and not the stomach. And also the human have other organs in the body that can breaks down or absorb the food into nutrient like carbohydrates protein and fats. But the koala doesn't have any organs that helps them.
answ2. Everyone and every animal above the most primitive, has a digestive system, otherwise they would not be able to obtain nutrition.
The ectoderm is the germ layer covering the surface of the embryo and develops into the outer covering of the animal (in our case, our skin) and in some phyla, the nervous system. The mesoderm forms the muscles and most other organs between the digestive tract and the outer covering of the animal. The endoderm, which is the innermost germ layer, lines the developing digestive tube (referred to as the archenteron) and gives rise to the lining of the digestive tract or cavity and organs derived from it, such as the liver and lungs.
The simpler the animal, the simpler its digestive system is. For instance, when we eat food, it has to travel through our network of intestines, but a primitive animal may have a simple tube for digestion.
The major organs of the digestive tract are: -Mouth/Teeth -Esophagus -Stomach -Small Intestine -Large Intestine -Rectum/Anus The digestive system also has organs that food does not go through. These organs include: -Liver -Gallbladder -Pancreas
Yes, both Alligators and Crocodiles have a digestive system. They are said to have some if the most acidic stomachs in the animal kingdom as they eat animals whole; bones, skin and horns alike. Therefore they need to be able to process the entire meal.
A group of organs form the Organ System. Organ system are necessary to run the body. A group of cells-tissue a group of tissue-organ a group of organs-organ system a group organ systems-an multicellular organism's body. For e.g. digestive system, respiratory system,etc.