How many sensilla are typically found on a worker bee's antenna?

The number of sensilla found on a worker bee's antenna is a vital aspect of their sensory biology. Worker bees have approximately 30,000 sensilla on their antennae, which play a crucial role in their ability to detect pheromones, odors, and other chemical cues in their environment. This high number of sensory receptors allows bees to communicate, forage, and navigate effectively.

The choice indicating 5,000 sensilla significantly underestimates the actual number. While worker bees have fewer sensilla compared to other structures like their legs or mouthparts, the total is still far higher than this option suggests. The other choices—10,000, 15,000, and 30,000—provide progressively higher estimates, with 30,000 being the most accurate representation based on current knowledge of bee anatomy and sensory capabilities.