The maximum number of organisms that the resources in the habitat can support is referred to as

In ecology, the carrying capacity of a habitat is the maximum number of individuals of a particular species that the available resources (food, water, shelter, space) can sustain indefinitely without degrading the environment. When a population exceeds its carrying capacity, resources become insufficient, leading to increased competition, starvation, disease, or emigration, which brings the population back down.

The other options do not accurately describe this concept. "Maximum population" sounds plausible but is not a standard ecological term for this idea. "Working potential" and "operating capacity" are not recognised biological terms in this context. The precise, universally accepted term in ecology is carrying capacity, often symbolised as K in population growth equations.

For examinations, remember that carrying capacity is determined by limiting factors in the environment and can change if environmental conditions change.