Question

both graphs below represent differe models.
population growth models
graph 1 graph 2
in graph 1, there are no external factors acting on the population. what is the most likely factor causing the change seen in graph 2?
a the limitation of genetic diversity b the maximum rate of reproduction
c the limited amount of available resources d the maximum rate of adapation

Explanation:

Graph 1 is a J - shaped curve, representing exponential growth with no limiting factors. Graph 2 is an S - shaped curve (logistic growth). In logistic growth, as the population increases, resources (such as food, space) become limited. This leads to increased competition, and the population growth rate slows down until it reaches the carrying capacity (the maximum number of individuals the environment can support). Genetic diversity limitation (A) would affect the population's ability to adapt over generations but not directly cause the leveling - off seen in Graph 2. The maximum rate of reproduction (B) is a characteristic of the species and more relevant to the initial growth phase. The maximum rate of adaptation (D) is not the main factor causing the population to level off; it is more about resource availability.

Answer:

C. The limited amount of available resources