What is a group of communities that covers large area and contains characteristic assemblage plants animals?

A group of communities that covers a large area and contains a characteristic assemblage of plants and animals is called a biome.

Here's a breakdown:

* Biomes are large-scale ecosystems characterized by specific climate conditions and dominant plant and animal life.

* Communities are groups of interacting populations of different species living in the same area.

* Large area refers to the vast geographical extent of a biome, spanning continents or major regions.

* Characteristic assemblage means that biomes have a distinct set of plants and animals adapted to the unique environmental conditions of that biome.

Examples of biomes include:

* Tropical rainforests: Warm, humid climates with high biodiversity.

* Temperate deciduous forests: Seasonal climates with deciduous trees.

* Grasslands: Dry climates with grasses as the dominant vegetation.

* Deserts: Arid climates with sparse vegetation.

* Tundra: Cold, treeless regions with low-lying vegetation.

* Marine: Oceans and seas with a wide variety of aquatic life.