Answers

2014-09-24T21:10:00+05:30
Producer---primary consumer-----------secondary consumer----------tertiary consumer----top carnivore
ex:grass--------rabbit-----------fox----wolf
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2014-09-24T21:12:18+05:30
Because of ten Percent Law.Energy reduces by 10% when it goes to next Tropic level in food chain. For example 
            Grass-------- Grasshopper------------rabbit-------snake ----eagle .
Eagle will have the last energy .so that is why food chains have only 3-4 steps .

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