Science PSSA Practice Test

The term that defines the largest number of individuals of a population that an environment can support is known as carrying capacity. This concept is crucial in ecology, as it reflects the balance between the resource availability in the environment and the needs of the organisms living there. When a population exceeds its carrying capacity, the available resources—such as food, water, and space—become insufficient to support the larger number of individuals, which can lead to increased competition and stress within the population.

Understanding carrying capacity helps scientists and ecologists make predictions about population dynamics and the sustainability of different ecosystems. This concept is foundational in preserving biodiversity and managing wildlife, as it underscores the importance of maintaining an ecological balance to ensure the long-term survival of species.