What is the formula for exponential population growth?

The population growth curve in most animals,except humans,is:

Explain exponential growth as a growth model with a suitable graph and examples.

The population of an insect species shows an explosive increase in numbers during the rainy season,followed by its disappearance at the end of the season. What does this show?

When births are equal to deaths,it is called:

With the help of a suitable diagram,describe the logistic population growth curve.