Which system would utilize heat-seeking technology?

Heat-seeking technology is specifically designed to detect the infrared radiation emitted by warm bodies, such as aircraft or missiles. This capability is fundamental to missile guidance systems, which rely on identifying and tracking the heat signatures of their targets to home in on them effectively. The heat-seeking mechanism works by using sensors that can pick up variations in temperature, allowing for precise targeting even in varied environments.

In contrast, radar systems operate by sending and receiving radio waves to detect objects, rather than relying on thermal signatures. Communication networks focus on transmitting data and messages, without any direct involvement of heat detection. Weather monitoring systems gather data about atmospheric conditions but do not utilize heat-seeking technology in their operations. Thus, missile guidance systems are the most appropriate choice, as they directly employ heat-seeking technology to enhance their effectiveness in engaging target threats.