Which statement about big headed ants is true?

• A. Builds nests in sound wood
• B. Have 2 distinct worker forms
• C. Can be found in warm damp areas
• D. Has underground nests

Answer: (B)

Big-headed ants are defined by worker polymorphism: there are two distinct forms of workers, minors and majors (soldier-like workers with large heads). This division of labor is a hallmark of their biology. The majors’ large heads and strong mandibles are specialized for defense and processing larger food items, so the presence of both small and large-headed workers is a distinguishing, identifying feature of this species.

Nesting behavior and habitat can vary among ants, but they don’t typically rely on sound wood for nests, which makes that statement less characteristic. While many ants have underground nests and some are found in warm, damp areas, these traits aren’t unique to big-headed ants. The two distinct worker forms stand out as the best, most distinctive feature.