What most defining characteristic is shared by every organism in the order Lepidoptera?

Answer

The covering of tiny, overlapping scales on wings and bodies

The presence of tiny, overlapping scales, which are modified, flattened hairs, is the most defining characteristic of all members of the Lepidoptera order.

What most defining characteristic is shared by every organism in the order Lepidoptera?
animalinsectclassificationmotharthropod