EVERYDAY SCIENCE

Detailed explanation-1: -The population starts out growing slowly. As population size increases, the growth rate also increases. The larger the population becomes, the faster it grows.

Detailed explanation-2: -During exponential growth, the population grows at a slow pace, and then the growth rate accelerates. For exponential growth to occur, there must be no limiting factors.

Detailed explanation-3: -Exponential growth may happen for a while, if there are few individuals and many resources. But when the number of individuals gets large enough, resources start to get used up, slowing the growth rate.

Detailed explanation-4: -According to the logistic growth model, a population first grows exponentially because there are few individuals and plentiful resources. As the population gets larger and approaches the environment’s carrying capacity, resources become more scarce and the growth rate slows.

Detailed explanation-5: -The population size grows exponentially for a while (like the bison in Figure 1), but then it slows down and levels off when as it approaches the carrying capacity (K).