Which sentences describe the logistic growth model? there are three different phases of the s-shaped curve. at first, growth is exponential because individuals are few and resources are plenty. this growth model occurs in a situation where resources are plenty and individuals are few to consume the resources. population growth decreases as resources become limited. when a population size reaches the carrying capacity of its environment, the population growth slows down or stops completely. the model looks like a j-curve.
Exponential growth occurs when there are few individuals and many resources (this is often not a case in real world). When the number of individuals starts to increase, resources reduce and growth rate slows down or levels off, making an S-shaped curve. The population size at that moments (which represents the maximum population size a particular environment can support), is called the carrying capacity (K).