In a biosphere, organisms live in special groupings. For instance, a population consists of all individuals of a species living in a general area. A community is a population located

In the ecosystem, matter and nutrients are cycled via biogeochemical cycles such as water, carbon dioxide, nitrogen, and phosphorous. The burning of fossil fuels contributes to the industrial cycle of carbon dioxide in the atmosphere. This contributes to the greenhouse effect, which has been a reason for global warming. Nitrogen is found in the atmosphere and makes up about 78% of the earth's air mixture. Oxygen makes up about 22% of the earth's air mixture, and pollutants make up about 1% of the earth's air mixture. Nitrogen is important in the development of organisms on earth, as the make compounds such as proteins and amino acid. These compounds are important because they make up DNA and other compounds crucial to the formation and sustenance of life.

There are three types of relationships involving the interactions between organisms. They are mutualism, commensalism, and parasitism. Mutualism

Some common words found in the essay are:
, earth's air mixture, organism's niche, earth's air, abiotic factors, air mixture, carbon dioxide, niche provides organism, niche provides, benefits organism, development organisms, earth's surface, living organisms,
Approximate Word count = 617
Approximate Pages = 2 (250 words per page double spaced)