A rabbit's strong hind legs allow it to escape predators by running quickly. This is BEST classified as which type of adaptation?
AStructural — anatomical feature inherited and present in the body
BBehavioral — an inherited action pattern the animal performs
CPhysiological — an internal chemical or metabolic process
DMimicry — resembling another organism for defense
Explanation
The rabbit's hind legs are an anatomical body feature — a structural adaptation. Structural adaptations are physical body parts (legs, claws, fur, beaks) inherited through generations. Distractors: Behavioral would be the act of running away (a pattern of action), not the legs themselves. Physiological refers to internal processes like blood pressure or hormone release, not external anatomy. Mimicry is a specific case where one organism resembles another for defense, which doesn't apply here.