What characteristic is common among many adult bees, wasps, and hornets?

Adult bees, wasps, and hornets share the characteristic of having two pairs of transparent wings, along with a narrow waist. The two pairs of wings allow for effective flight and maneuverability, which is essential for their foraging and navigation activities. The narrow waist, often referred to as the "petiole," differentiates them from other insect groups and is particularly distinctive in wasps and hornets. This feature is an adaptation that plays a role in their agile movement, allowing them to dart quickly and change direction effortlessly while in pursuit of food or when defending their nests.

The presence of transparent wings also signifies that these insects belong to the order Hymenoptera, where this wing structure is common. This anatomical configuration supports their lifestyle as pollinators and predators, making their classification and behavior easier to understand within the context of ecological roles.