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| is the scientific study of interactions among organizams and their enviorment,or surroundings |
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| combined portions of the plant in which of all life exists land,water,and air or atomasphere |
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| combined portions of the plant in which of all life exists land,water,and air or atomasphere |
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| combined portions of the plant in which of all life exists land,water,and air or atomasphere |
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| organisams that are similar to one another that they can breed and produce fertile offspring |
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| individuals that belong to the same species and live in the same area |
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| collection of all the organisams that live in a particular place |
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| group of ecosystems that have the same climate and similar dominate communities |
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| only plants, some alge and certain bacteria can capture energy from sunlight or chemicals and use energy to produce food |
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| organic molecules that combine and recombind to produce living tissue and they make their own food,autotrophs like kelp |
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| converts carbine dioxide into water into oxygen and rich energy carbohydrates such as sugars and starches |
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| organisams use chemical energy to produce carbohydrates |
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| organisams that rely on other organisams for there energy and food supply also called consumers |
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| obtain energy only by eating plants |
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| eat both plants and animals |
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| feed on plant and animal remains |
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| break down organic material |
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| energy stored by producers that are passed by the ecosystem |
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| feeding relationships between organisams in an ecosystem ,form a network of complex interaction |
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| diagram that shows relative amounts of matter contained w/in each trophic level in a food chain or web |
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| each step in the food chain or web |
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| total amount of living tissue w/in a given trophic level |
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| elements,chemical compounds, and other forms of matter are passed from one organisam to another and one part of the biosphere to another |
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| process by which water changes from a liquid to an atmospheric gas |
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| when water enters the atmoshere by evaporatingfrom the leaves |
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| chemical substances that organisams need to substain life |
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| bacteria that lives in the soil and on the roots of plants called legumes,convert nitrogen gas into amonia |
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| other soil that coverts nitrates into nitrogen gas |
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| rate at which organic matter is created by producers |
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| ecosystem is limited by a single nutrient that is scarce or cycles very slowly |
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