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Biome (/ˈbaɪoʊm/), from the Greek bios meaning "life" and -ome meaning "assemblage," is a term used in biology to describe a large community of plants and animals that inhabit a distinct region of the world.


The term "biome" was first used in the early 20th century, derived from the Greek words bios meaning "life" and -ome meaning "assemblage". It was used to describe the living organisms in a particular environment.


A biome is a specific environment that's home to living things suited for that place and climate. Biomes are often defined by abiotic factors such as climate, relief, geology, soils and vegetation.

Types of Biomes

There are five major types of biomes: aquatic, desert, forest, grassland, and tundra. Each of these biomes has unique characteristics, such as the types of animals and plants found there, the climate, and the geographical features.

  • Aquatic Biome: This biome is characterized by its water environment and is home to a variety of plants, fish, and other animals. It is the largest biome, covering about 75% of the Earth's surface.
  • Desert Biome: This biome is characterized by its dry, arid conditions. Plants and animals that live in this biome have special adaptations that allow them to survive with little water.
  • Forest Biome: This biome is characterized by a large number of trees and other plants. It is home to a wide variety of animals and is divided into three main types: tropical, temperate, and boreal forests.
  • Grassland Biome: This biome is characterized by large open areas of grass. It is home to many types of animals, including large herds of grazing animals.
  • Tundra Biome: This biome is characterized by its cold, harsh conditions. It is the coldest of all the biomes and is home to a variety of animals adapted to the cold.

Related Terms

  • Ecosystem: An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system.
  • Habitat: A habitat is an ecological or environmental area that is inhabited by a particular species of animal, plant, or other type of organism.
  • Biodiversity: Biodiversity is the variety and variability of life on Earth.

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