Question

Які тварини мають замкнену травну систему​

Answer 1

Така будова травної системи у кишковопорожнинних і плоских червів.

Рот —> кишечник —> рот. Це замкнений тип травної системи.

Answer 2

Animals with a Closed Digestive System

Animals with a closed digestive system have a complete digestive tract, also known as an alimentary canal, that consists of a mouth, esophagus, stomach, small intestine, and large intestine. This type of digestive system allows for the efficient digestion and absorption of nutrients from food.

Some examples of animals that have a closed digestive system include:

1. Mammals: Mammals, including humans, have a closed digestive system. The food enters the mouth, passes through the esophagus into the stomach, then moves through the small intestine where most of the digestion and absorption of nutrients occurs. The remaining undigested material passes into the large intestine, where water is absorbed, and finally, the waste is eliminated through the rectum and anus.

2. Birds: Birds also have a closed digestive system. They have a beak instead of teeth, which helps them break down food. The food is then swallowed and passes through the esophagus into the crop, where it is temporarily stored. From the crop, the food moves into the stomach, where it is further broken down. The small intestine is responsible for the absorption of nutrients, and the large intestine is involved in water absorption. The waste is eliminated through the cloaca.

3. Reptiles: Reptiles, such as snakes and lizards, have a closed digestive system. They have a similar digestive process to birds, with the food passing through the esophagus, stomach, small intestine, and large intestine. Reptiles also have a cloaca, which is a common opening for the digestive, urinary, and reproductive systems.

4. Amphibians: Amphibians, like frogs and salamanders, have a closed digestive system. They have a mouth, esophagus, stomach, small intestine, and large intestine. However, their digestive system is simpler compared to mammals, birds, and reptiles. The food is swallowed whole and is broken down in the stomach. The small intestine is responsible for nutrient absorption, and the waste is eliminated through the cloaca.

5. Fish: Fish have a closed digestive system, although it is less complex compared to mammals, birds, reptiles, and amphibians. They have a mouth, esophagus, stomach, and intestine. The food is broken down in the stomach and further digested and absorbed in the intestine. The waste is eliminated through the anus.

These are just a few examples of animals that have a closed digestive system. It is important to note that there are variations in the digestive systems of different animal species, and some animals may have adaptations to their digestive systems based on their diet and lifestyle.