[Ecology and problems of the search for life on Mars]

Global gases-exchange metabolic cycles, which on the Earth connect autotrophic and heterotrophic organisms in indivisible biosphere of Earth, are absent on Mars as a result of rarely atmosphere. That is why Life on Mars way exist only in form of autotrophic-heterotrophic organisms-symbionts with closed metabolic cycles. Dust storms on Mars may produce continuous settling of Life in a new places which is favourable for Life. The methods of Life-searching on Mars mast take in account that fundamental difference of Life formation on Mars from so on Earth.