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### Question Asked by a Student from EXXAMM.com Team

** Q 2615145060. ** Draw and explain a logistic curve for a population of density (N) at time (t) whose

intrinsic rate of natural increase is (r) and carrying capacity is (k).

OR

Describe the process of decomposition of detritus under the following heads:

Fragmentational leaching; catabolism; humification and minerlization.

**CBSE-12th 2010 **