What is the chicken's organ of prehension?

The correct identification of the chicken's organ of prehension is the beak. This organ serves a critical function in the feeding process as it allows chickens to peck, grasp, and manipulate their food. The beak is specially adapted for foraging and consuming a variety of feedstuffs, including grains and seeds. Its shape and structure enable chickens to effectively pick up food items and bring them to their mouths.

Other choices such as wings, claws, and feet do not serve the primary purpose of prehension. Wings are primarily used for balance and, in some cases, flight, while claws and feet are mainly involved in locomotion and providing stability, not in the act of grasping or manipulating food. Hence, the beak is uniquely suited as the organ of prehension in chickens, facilitating their feeding behaviors efficiently.