Organisms are unique and diverse living organisms that are found on Earth. They come in a variety of shapes, sizes, and capacities. Most importantly, organisms are special because they are capable of interacting with the environment. Organisms receive energy from their environment and use it to grow and reproduce. They can incorporate energy and resources into matter, resulting in energy flow, biogeochemical cycles and nutrient cycles in the environment. The collective impacts of all organisms on global processes, such as climate and biogeochemical cycling, are referred to as the biosphere, and ultimately provides a habitat for other organisms as well. Organisms are also capable of adapting and evolving over time as a result of natural selection. Organisms can develop new traits and evolve to suit different environmental conditions. They can be exposed to hostile environments and still thrive, or reproduce asexually to quickly expand their population size when necessary. This ability of organisms to adapt to environmental change helps maintain a balance in the overall ecosystem. All in all, organisms are incredibly special due to their ability to interact with the environment, receive energy from the environment, and evolve over time to adapt to different conditions. Without organisms, the Earth would not be the same.