Page 90 - The Final Appeal to Mankind
P. 90

«The Final Appeal to Mankind» by Nicolai Levashov












































































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            When the population density  increases beyond the optimum level (N ), processes
            arise within the colony leading to an increase in the death rate and a decrease in the
            birth rate, in time returning the population density to an optimal level (F Fi ig g. .   4 40 0).










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