Group6

= Group 6 =

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 * //Ecosys tems // **======

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Materials needed to make an aquarium are Aquarium jar, 2 cupful of soil, cup of water, piece of fiberglass screen, rubber band, spoon, dropper, cup of gravel, 1 small cup of each seeds: grass, alfalfa, and mustard,2 toothpicks,hand lens, marker and other garden stuffs. Many complex relationships exist in nature. animals,plants,either living things, such as algae and bacteria and if you puts that for a long thim just in a small bottle it also gets dirtier.======

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the ecosystem is the nature unite consisting of all plants, animals and micro-organisms in an area functioning together with all of the non-living physical factors of the environment. An ecosystem is a completely independent unit of interdependent organisms which share the same habitat. Ecosystems usually form a number of food webs which show the interdependence of the organisms within the ecosystem======

-cutting tree -using water from the water ecosystem
-damming rivers

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 **4) How are resources used by different groups?** ======

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-wat lands cleans the water brings nuts fgrilts madicien ======

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**6) Why do some people think it is important to protect ecosystems? ** ======