Differentiate between S-shaped and J-shaped growth curve.
S-shaped curve | J-shaped curve |
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(i) It comprises the lag phase, exponential phase and stationary phase. | (i) It comprises only two phases - lag phase and exponential phase. |
(ii) Population becomes stable with zero growth rate and the curve levels. | (ii) Population faces mass mortality, and the curve stops. |
(iii) It is observed by most species including humans. | (iii) It is observed in few organisms such as reindeer and annual plants. |