AP BIOLOGY

Detailed explanation-1: -The biosphere is a global ecosystem composed of living organisms (biota) and the abiotic (nonliving) factors from which they derive energy and nutrients.

Detailed explanation-2: -The biosphere is sometimes thought of as one large ecosystem-a complex community of living and nonliving things functioning as a single unit. More often, however, the biosphere is described as having many ecosystems. People play an important part in maintaining the flow of energy in the biosphere.

Detailed explanation-3: -The Biosphere–contains all the planet’s living things. This sphere includes all of the microorganisms, plants, and animals of Earth. Within the biosphere, living things form ecological communities based on the physical surroundings of an area. These communities are referred to as biomes.

Detailed explanation-4: -The biosphere includes all life on our planet. It is not only all the things that are living, but also the remains of organisms that have died and not yet decomposed. It also includes the regions of the other parts of the Earth system (atmosphere, hydrosphere, geosphere) occupied by living organisms.

Detailed explanation-5: -The biosphere includes the outer region of the earth (the lithosphere) and the lower region of the atmosphere (the troposphere). It also includes the hydrosphere, the region of lakes, oceans, streams, ice and clouds comprising the earth’s water resources.