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    Essay Humans In The Biosphere (639 words)

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    Biosphere:The biosphere is part of the earth in which life exists.

    It is 20 kilometers thick from the bottom of the ocean to the lower atmosphere. It consists of three layers: the lithosphere, which is the land on the surface of the earth; the hydrosphere, which comprises of the water on the earth as well as water vapor in the air; and the atmosphere, which is made up of the air that surrounds the earth. The living organisms in the biosphere interact and affect each other in many ways. This is called a biotic community.

    There are non-living elements that have an effect on living organisms, these are considered abiotic factors. Some examples of abiotic factors are air, temperature, water, soil, light, and minerals. In a biosphere, organisms live in special groupings — for instance – a population consists of all individuals of a type living in a general area. An community is a population located in a certain area living among different species.

    An ecosystem is a larger mass of a population, a community, and abiotic factors. Ecosystems can be aquatic or terrestrial. The earth’s aquatic ecosystem makes up about 75% of the earth’s surface. This aquatic environment is divided into marine and freshwater environments. The earth’s earthly ecosystem is mainly made up of forests and deserts, which make up for 25% of the earth’s surface.

    The role or function of an organism in a community is that organism’s function. An organism’s role is an area picked by that organism based on physical factors such as temperature, light, oxygen and carbon dioxide content and biological factors such as food, competition for resources and predators. This niche provides the organism a place to live in. A habitat remains consistent with an organism’s niche as well as provides the organism with a place to reproduce. In this case, organisms may have the same habitat, but different niches. There are three types of relationships involving the interactions between organisms.

    They are mutualism* (mutually beneficial association between different kinds of organisms), commensalisms* (a relation between two kinds of organisms in which one obtains food or other benefits from the other without damaging or benefiting it), and parasitism* (an intimate association between organisms of tow of more kind; especially: one of which a parasite obtains from a host which it usually injures. )1. ) Mutualism is a relationship where both organisms benefit from their interaction with each other. An example is the honey bee and a flowering plant. 2.

    ) Commensalisms only benefits one organism, but the other organism is not affected. 3. ) Parasitism only benefits one organism and harms the other organism, which most of the time is the host. In the ecosystem, matter and nutrients are cycled by way of 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. Changes in an ecosystem are brought about by different factors. For example, ecological series brings about the replacement of one community by another in an ecosystem. In other instances, organisms that colonize an area with no community present are considered pioneer organisms.

    A climax community is the final stage of development of organisms and can be disrupted by a major catastrophe like a volcanic eruption. Bibliography:Charlene Ngong: http://Science/Ecology_lab_report.shtml

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    Essay Humans In The Biosphere (639 words). (2019, Jan 25). Retrieved from https://artscolumbia.org/the-biosphere-essay-74502/

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