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lord of the filesScience 10 ecology project& adenine9312 Extinction of species&type A61548     A species becomes extinct when its last representative dies.& angstrom unit61548     Extinction is forever - Once a species become extinct lead never been seen again. & adenine61548     This has happened quite a lot of times on Earth.&61548     Due, in many cases, to colonization and hunting by humans.&61548     People feel that extermination is very sad, and try to protect life-forms on the brink of extinction by naming them "endangered species" and being splendid to them.&61548     Each living organism which humans force into extinction is a tragedy for nature.&61548     Over fishing or undue hunting by humans brush off reduce the populations of certain organisms on Earth.&61548     Animals are hunted fo r their fur, meat or another(prenominal) invaluable parts of their bodies.http//www.galactic-guide.com/articles/2R84.htmlhttp//www.saburchill.com/hfns02/chapters/chap019.html1.     lost of habitat&61548     Sometimes human activities drop off the habitats of living organisms. The habitat of an organism is its home where it lives, feeds, and reproduces.&61548     Many species take for become extinct because humans dumbfound destroyed or circumscribed their habitats, polluted their environment&61548     Human influences on the environment can be considered as being influences on the habitats of living organisms.&61548      all time humans alter the hydrosphere, lithosphere, atmosphere or biosphere, habitats are change&61548     Survival can become much challenging (or take raft impossible) for the organisms which live there.&61548 &nbs p   When hunters miss their target, the lead shot which comes out of the weapon is left behind in nature. Lead is a toxic metal.&61548     The main component of a pandas diet is bamboo. Bamboo forests have been cut down by humans for centuries.http//www.saburchill.com/hfns02/chapters/chap020.htmlhttp//www.saburchill.com/hfns02/chapters/chap021.html2.     lost of biodiversity&61548     This collection of vastly wide-ranging living organisms is our planets biodiversity.&61548     The richest parts of the planets biodiversity are also the least well-known. It is estimated that 97% of all species on Earth live in the oceans below the govern where sunlight penetrates the water.&61548     On the continents, it is estimated that 50% of all land-dwelling species live in tropical rainforests.&61548     Throughout the history of the Earth, as new species evolve, other species become extinct. Overall, as time has progressed, there are more and more different kinds of organisms.&61548     Human activities today are exterminating species up to 10 times faster than they would naturally disappear.&61548     As the numbers of the great unwashed increase, the numbers of species decrease. &61548     http//www.saburchill.com/hfns02/chapters/chap024f.html3.     Introduction of exotic species&61548     Humans have helped to spread many species across the world.&61548     More often, however, species are introduced unexpectedly and have a negative impact.&61548     Plant species used in agriculture, for example, have been deliberately introduced to new areas by humans.&61548     Sometimes infatuated animals are introduced for hunting as a sport.