all about ecosystems
biomethe-desert-biomeTypes Aquatic BiomesForest biomes of the worldtypes of grassland biometypes of the tundra biome
 

What is an ecosystemScales of an ecosystemLevels of organisation of an ecosystem
What is a biome
What is a food chainTrophic levels of an ecosystem
The Carbon Cycle
The nitrogen cycle
Important ecosystem terminology


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What is a biome?

Biomes are very large ecological areas on the earth’s surface, with fauna and flora (animals and plants) adapting to their environment. Biomes are often defined by abiotic factors such as climate, relief, geology, soils and vegetation. A biome is NOT an ecosystem, although in a way it can look like a massive ecosystem. If you take a closer look, you will notice that plants or animals in any of the biomes have special adaptations that make it possible for them to exist in that area. You may find many units of ecosystems within one biome.

There are five major categories of biomes on earth. In these five, there are many sub-biomes, under which are many more well defined ecosystems.

Let us take a quick look at each of these biomes below:
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The Desert Biomes: They are the Hot and Dry Deserts, Semi Arid Deserts, Coastal Deserts and Cold Deserts.
types of desert biome

The Aquatic Biomes: Aquatic biomes are grouped into two, Freshwater Biomes (lakes and ponds, rivers and streams, wetlands) and Marine Biomes (oceans, coral reefs and estuaries).
Types of aquatic biomes

The Forest Biomes: There are three main biomes that make up Forest Biomes. These are the Tropical Rainforest, Temperate and Boreal Forests (also called the Taiga)
Types of forests biome

The Grassland Biomes: There are two main types of grassland biomes: the Savanna Grasslands and the Temperate Grasslands.
Types of grassland biomes

The Tundra Biomes: There are two major tundra biomes—The Artic Tundra and the Alpine Tundra.
Types of tundra biome

Biomes play a crucial role in sustaining life on earth. For example, the Aquatic biome is home to millions of fish species and the source of the water cycle. It also plays a very important role in climate formation. The terrestrial biomes provide foods, enrich the air with oxygen and absorb carbon dioxide and other bad gases from the air. They also help regulate climate and so on.

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