Study the figure and identify $A$ and $B$
$A-$Increase, $B-$Decrease, $C-$Increase, $D-$Decrease
$A-$Decrease, $B-$Increase, $C-$Decrease, $D-$Increase
$A-$Increase, $B-$Increase, $C-$Decrease, $D-$Decrease
$A-$Decrease, $B-$Decrease, $C-$Increase, $D-$Increase
A biologist studied the population of rats in a barn. He found that the average natality was $250$, average mortality $240$, immigration $20$ and emigration $30$. The net increase in population is
Which of the following is correct for $r$-selected species?
If the rate of addition of new members increases with respect to the individual host of the same population, then the graph obtained has:
The equation of Verhulst-Pearl logistic growth is $\frac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left[\frac{\mathrm{K}-\mathrm{N}}{\mathrm{K}}\right]$.
From this equation, $\mathrm{K}$ indicates: