The term "biosphere" refers to the entire system of living beings on Earth, including plants, animals, and microorganisms. Synonyms for the word biosphere might include "ecosystem," "biome," or "living world." Other related terms include "habitat," which refers to the specific environment in which a particular organism lives, and "biodiversity," which refers to the variety of different species and ecosystems found within the biosphere. By understanding the complex relationships between different organisms within the biosphere, scientists can better understand how to protect and conserve our planet's delicate ecosystems for future generations.