Answer the following question given this paragraph: 

45.3 Environmental Limits to Population Growth Populations with unlimited resources grow exponentially, with an accelerating growth rate. When resources become limiting, populations follow a logistic growth curve. The population of a species will level off at the carrying capacity of its environment.


Q: While populations with unlimited resources grow exponentially, the population of a species will level off when what limit of its environment is reached?


A:
carrying capacity