The Earth's biosphere is consists of

a diverse collection of living organisms that exist on Earth. It includes all forms of life, including plants, animals, fungi, bacteria, and other microorganisms. These organisms interact with each other and with their physical environment, such as the atmosphere, hydrosphere, and lithosphere, to create a complex and interconnected web of life. The biosphere encompasses various ecosystems, from terrestrial habitats like forests and grasslands to aquatic environments like oceans and lakes. It is a dynamic system that is constantly changing and evolving over time.