NEET BIOLOGY

Detailed explanation-1: -The biosphere is made up of the parts of Earth where life exists. The biosphere extends from the deepest root systems of trees, to the dark environment of ocean trenches, to lush rainforests and high mountaintops. Scientists describe Earth in terms of spheres. The solid surface layer of Earth is the lithosphere.

Detailed explanation-2: -The portions or regions where organisms are found are collectively called the biosphere. Thus, it can also be said that the biosphere is the sum of all the ecosystems on Earth. The word biosphere came from the Greek “bios” that refers to “Life” and “sphaira” that refers to the Earth’s shape.

Detailed explanation-3: -The biosphere, also known as the ecosphere, is the Earth’s dynamic biological epidermis of unknown dimensions. It is the natural habitat of living organisms. It is made up of the lithosphere’s surface, a lower portion of the atmosphere, and the hydrosphere. The biosphere is the world’s ecological system as a whole.

Detailed explanation-4: -The biosphere supports all life on Earth, 3 to 30 million species of plants, animals, fungi, single-celled prokaryotes such as bacteria, and single-celled eukaryotes such as protozoans.