Change in population size equation with prolonged exponential phase can be converted into logistic growth equation by multiplying it with
$\frac{ K }{ N }$
$\frac{K-N}{K}$
$\frac{K}{K-N}$
$\frac{1}{N-K}$
Sigmoid growth curve is represented by
Two opposite forces operate in the growth and development of every population. One of them related to the ability to reproduce at a given rate. The force opposite to it is called
A population of Paramoecium caudatum was grown in a culture medium. After $5$ days the culture medium became overcrowed with Paramoeium and had depleted nutrients. What will happen to the population and what type of growth curve will the population attain ? Draw the growth curve.
If natality is represented by $-B$
If mortality is represented by $-D$
If immigration is represented by $-I$
If emigration is represented by $-E$
If population density is represented by $-N$
Then population density at time $t+1$ is represented by
Which of the following contributes an increase in population density?