What does a single resource consist of?

A single resource is defined as an individual or a piece of equipment, or a crew led by a supervisor. This definition highlights the versatility of what constitutes a single resource in the context of incident management. Each of these elements is crucial: an individual could be a trained professional like a firefighter or medic; equipment could include vehicles, tools, or any machinery necessary to support operations; and a crew represents a small group organized for specific tasks, all under the guidance of a supervisor to ensure effective coordination and efficiency.

In contrast, the other options refer to different configurations of resources. A group of mixed resources does not meet the criteria for a single resource since it implies multiple types or categories working together. A functional unit under a task force denotes a more complex structure involving multiple resources organized for a specific operation, beyond the singular definition. A strike team consists of several units of the same kind, thus representing a collective rather than an individual resource. Therefore, the answer accurately reflects the definition in the National Incident Management System framework for what constitutes a single resource.