Population or species
A group of ecosystems with similar organisms and climates is called a biome. There are several different types of biomes. They are: Tundra, taiga, desert, steppe, rain forest, savanna, and temperate forest.
Group of one species living together is called population. Group of populations living in an area is called community. Group of populations living in an area plus the environment around them is called ecosystem.
Species.
habitat, niche, environment are all used to describe this.
the space an organism occupies is called a niche the surroundings of and organism would be its habitat I hope this is what you meant by organisms surroundings? if not restate question a little more clearly
Living factors in the environment is called biotic factors.
The surroundings where organisms live is called a habitat.
Organisms live everywhere
biotic factors
habitat
It's called a niche.
habitat
A group of similar organisms is called a species.
The selection of the organism that survives best in a habitat with limited resources and that organisms superior reproductive success is called natural selection.
pioneer species
Zonation
Co-evolution.