A) lag
B) stationary
C) exponential
D) none of these
Correct Answer: C
Solution :
Population growth curve is the graphic representation of population growths by plotting number of individuals at different time intervals. The human population growth curve is S shaped or sigmoid. It has three phases. [a] Lag phase is slow in the beginning due to small size of population, lack of adaptation to new environment and slow development. [b] Log phase or exponential phase is geomatric increase in population size due to abundance of food, space and natural resources. [c] Stationary phase or zero growth phase is the stability of population (i.e., birth and death rates are equal, so that there is no growth in population size.
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