What is a distinguishing feature of a termite soldier?

A termite soldier is characterized by its elongated head and large mandibles, which are crucial for its role within the colony. The soldier's primary function is to defend the nest from predators, and the large mandibles serve as powerful tools for this purpose. The elongated head helps provide the necessary leverage and strength to effectively use these mandibles in combat situations.

In contrast, other insect features listed in the other choices do not align with the biological characteristics of termite soldiers. For example, soldiers do not possess short legs or large eyes, nor do they have small bodies and transparent wings, as seen in the reproductive caste of termites. They are also not known for bright coloration or small size, which refers to other insects rather than their soldier counterparts who have a more robust and distinct appearance designed for protection.

Understanding these characteristics is essential for identifying termite soldiers during inspections and recognizing their role in the colony's defense strategy.