Merriam-Webster dictionary defines biosphere as "the part of the world in which life can exist." There are 2.1 million catalogued species known to exist and some scientist estimate as much as 100 million might exist. Each of these species has adapted to life in a particular part of the biosphere. These particular parts are called ecosystems. Since there is a large jump between the biosphere and ecosystems scientists have divided the biosphere into biomes.
In doing research about biomes, it seems that different scientists have different ideas about biomes. They vary in their number just as they vary in their names. Biomes could be called units of the biosphere and each biome is made up of many ecosystems. There are obviously many types of biomes in this world because of the diversity of climates around the world. The fewer number of biomes you choose to say make up our ecosystem, the more general they become. Some scientists obviously believed that more types of biomes are......

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Title: Biomes As Units Of The Biosphere
Approximate Word Count: 2011
Approximate Pages: 9 (250 words per double-spaced page)

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