Exponential functions often involve the rate of increase or decrease of something. When it's a rate of increase, you have an exponential growth function! The instructor discusses exponential function and how to determine if a value makes...

What are the characteristics that define populations? What causes populations to grow or decline? In the following video you will learn how a population is a group of individuals of the same species living within a designated area at one...

Paul Andersen explains the differences between an r and a K selected species. He starts with a brief description of population growth noting the importance of; r or growth rate, N or number of individuals in the population, and K the...

Paul Andersen explains how populations eventually reach a carrying capacity in logistic growth. He begins with a brief discussion of population size ( N ), growth rate ( r ) and exponential growth. He then explains how density dependent...

Observe the growth rates of a calf, chick and piglet. See how three children used the scientific method to determine which of these animals grows the fastest.