User:SAYA NABILA/Ecosystem
From Wikipedia, the free encyclopedia
Ecosystem is an ecological system formed by an inseparable reciprocal relationship between living things and their environment. Ecosystem can also be said to be a complete and comprehensive unitary order between all environmental elements that influence each other.
Ecosystem is an amalgamation of each biosystem unit which involves reciprocal interactions between organisms and the physical environment so that energy flows to a certain biotic structure and a material cycle occurs between organisms and inorganisms. The sun is the source of all existing energy.
In an ecosystem, the organisms in the community develop together with the physical environment as a system. Organisms will adapt to the physical environment, on the contrary organisms also affect the physical environment for the purposes of life. This definition is based on the Gaia Hypothesis, namely: "organisms, especially microorganisms, together with the physical environment produce a control system that keeps the conditions on earth suitable for life". This leads to the fact that the chemical content of the atmosphere and earth is very controlled and very different from other planets in the solar system.
The presence, abundance and distribution of a species in an ecosystem is determined by the level of resource availability as well as the chemical and physical conditions that must be within the range that the species can tolerate, this is what is called the law of tolerance. For example: Panda has a wide tolerance for temperature, but has a narrow tolerance for food, namely bamboo. Thus, pandas can live in an ecosystem in any condition as long as there is bamboo in the ecosystem as a source of food. Unlike other living things, humans can widen their tolerance range because of their ability to think, develop technology and manipulate nature.