What is the physical characteristic of termite antennae?

Termite antennae are characterized by being straight and segmented, resembling beads on a string. This structure is essential for their sensory perception, allowing termites to detect changes in their environment, communicate with one another, and navigate their surroundings. The bead-like segments increase the surface area for sensory receptors, making them highly effective for the termite's needs. This distinctive feature sets them apart from other insects, whose antennae may display different shapes or structures, such as being curved, short, or feathery. The straight and segmented design plays a crucial role in their social behavior and environmental interaction, making it a key characteristic to recognize.