Here's why:
* Structure refers to the physical characteristics of an organism, including its body parts, shape, and color. The red color of a fox is a physical characteristic, making it a structural feature.
* Behavior refers to the actions and reactions of an organism in response to its environment. Examples of fox behavior include hunting, socializing, and raising young.
Therefore, while the *red color* of a fox is a structural feature, its *behavior* is separate.