Kaplan Nursing Entrance Practice Exam

In a competitive relationship among organisms, limited resources are a key factor. This scenario occurs because organisms often vie for the same resources—such as food, water, space, and mates—that are necessary for their survival and reproduction. When resources are limited, it leads to competition, which can impact the health and success of the populations involved. The presence of limited resources also means that not all individuals within a population can thrive, as some may secure necessary resources while others may struggle. This concept is fundamental in understanding ecological dynamics and the concepts of natural selection and survival of the fittest, as individuals that can acquire resources more effectively are more likely to survive and reproduce. The idea of competition leading to limitations on population growth and individual success is pivotal in ecology and helps explain various species' behaviors and adaptations in their environments.