Concept:Soldier termites are wingless defenders of the colony with specialised body parts for protection.
Explanation:Unlike reproductive termites, soldiers do not have wings.
Their most noticeable features are a very large head and powerful, well-developed mandibles (jaws).
These mandibles are used to bite and fight enemies that threaten the colony.
Workers, by contrast, have smaller heads and weaker mouthparts because their role is feeding and nest building.
Therefore, the soldier caste is distinguished by the absence of wings, the presence of strong mandibles, and an enlarged head.
Answer:C. absence of wings, possession of strong mandibles and a large head.