Sigmoid growth curve is represented by
$d N / d t=r N$
$d N / d t=r N(1-N / K)$
$N t=N_{o}+B+I-D-K$
$d N / d t=1-N / K$
The population of a place can be increased when
The formula for exponential population growthis
Comment on the growth curve given below.
The following graph depicts changes in two populations $(A$ and $B)$ of herbivores in a grassy field. $A$ possible reason for these changes is that