Resource scarcity refers to the limited availability of resources necessary for the survival and reproduction of organisms. This scarcity leads to competition among individuals for these resources, as they must compete to obtain enough food, water, shelter, and mates to survive and reproduce. The competition among organisms result in only the fittest individuals being able to acquire the needed resources, ensuring their survival and passing on their genes to the next generation. In this way, resource scarcity and competition are directly linked to the survival and success of organisms in their environment.
