Living organisms make up the huge biodiversity that comprises life on earth. All living things are inter-connected, relying on each other to a larger or lesser degree for their survival. Living things can exist in a diverse range of habitats, some are specially adapted to allow them to survive in extreme environmental conditions.
Our living world is made up of both living components (biota); such as the bacteria, plants and animals; and non-living components (abiota), such as soil, water, and light. The complex inter-relationships of the biotic and abiotic components make up an ecosystem. All forms of life require water to survive, and as Earth is the only planet known to have water, it is the only planet known to possess life.
The articles in this guide provide more information on living things, giving insight into the complex cycles that are necessary to support life on earth, helping us to better understand the basics of ecology and how ecosystems function as a dynamic entity.
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