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1、Food ChainWhat is food chain?(ecology) a community of organisms where each member is eaten in turn by another member Who dare eat the biggest one?How does food chain work?Air ,sunshine ,soilFood chainmanufacturerconsumerdecomposer Non-living thingsLiving thingsEcology systemenergyenergyBacteria and
2、fungusGerm Virus BacteriaMany Food Chains in Nature TWO categories: land food chains sea food chainsMany Food Chains in NatureFour kinds food chains :1,Cao mu food chain, the main food chain , starts with plants ,in a way of being eaten by the following consumer.Plantsherbivoreflesh-eating animals h
3、:bivrs Many Food Chains in Nature 2,Fu xie food chain is a chain that remains of plants and animals are eaten by bacterium and fungus (mushroom). fgs 真菌How does food chain work?Air ,sunshine ,soilFood chainmanufacturerconsumerdecomposer Non-living thingsLiving thingsEcology systemenergyenergyBacteri
4、a and fungusFood ChainWhat is food chain?(ecology) a community of organisms where each member is eaten in turn by another member This definition is right. 3, Parasitic prsitik food chain: The chains forms in a parasitic way .寄生性食物链(寄生性食物链(parasitic food chain):由宿主和寄生物):由宿主和寄生物构成的构成的食物链食物链。它以大型动物为食物链
5、的起点,继之以小。它以大型动物为食物链的起点,继之以小型动物、微型动物、细菌和病毒。后者与前者是寄生性关型动物、微型动物、细菌和病毒。后者与前者是寄生性关系。例如哺乳类或鸟类系。例如哺乳类或鸟类-跳蚤跳蚤-原生动物原生动物-细菌细菌-滤过性滤过性病毒病毒. grassherbivoreflea acarusFlea: any wingless bloodsucking parasitic insect noted for ability to leap Acarus :any of several mites of the order Acarina 4,Mutated or variant food chain is a chain that some plants have been mutated and they feed on insects . mju:teit Change their genes,evolution
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