Carnivores and Herbivores

In 1891, a German zoologist named Karl Semper introduced the concept of food chain. This is an essential process for all organisms. The chain is made up of various levels. At the bottom is a plant, then herbivorous animals, there are animals to eat plants. Then carnivores, animals of other animal species, and finally carnivores. Chains tend to overlap for animals that eat more than one kind of food. Some people choose to be carnivores, others choose grazing animals because they feel that it is wrong to eat other living things.

According to diet, animals can be divided into three categories. Herbivores, carnivores, omnivores. The predominant food for carnivores is other animals, but herbivorous animals consume vegetable matter. Omnivorous animals consume plants and animals. In vertebrates, differences in structure between diet-based organisms usually include differences in dentition and intestinal length. Herbivorous animals consume algae, seeds, leaves, fruits and other vegetable matter. As some of these materials are readily available to energy, herbivores have developed alternative methods that release two nutrients: foregut and postganglia fermentation. In stomach fermentation, bacteria are used to decompose indigestible cellulose which is the main component of plant cell wall.

Like green plants, the energy distribution of herbivores is achieved by organic respiration or corrosion of microorganisms or consumption by carnivores. Major carnivores eat grazing animals and secondary carnivores to eat the main carnivore. The total energy of herbivores is consumed by the collapse of microorganisms' organic matter. Primary carnivores eat grazing animals to eat primary carnivores. Total energy assimilated by primary carnivores is entirely from herbivores and its treatment in further consumption of respiration, weakness and other carnivores is entirely similar to herbivores. Therefore, the grazing food chain is more effective or more efficient, as most primary production is transmitted via various nutrient levels and only a fraction enters the degradation system.

Nutrition level is the feeding position in the food chain. This food chain includes primary producers, herbivores, and primary carnivores. Plants are producers, at the initial nutrient level herbivores form the second level, carnivores from the third and fourth nutrient levels are formed. Since only a small amount of energy is transferred to higher levels, higher levels of organisms will be less. The limiting factor is the third ecological concept. Limiting factor limits population growth over existing scale