Which organ of prehension is associated with chickens?

The beak of a chicken is the primary organ of prehension. Prehension refers to the act of seizing or grasping food, which is essential for feeding. Chickens use their beaks to peck at the ground to find seeds, insects, and other food sources. The structure of a chicken's beak is specifically adapted for their feeding habits, allowing them to manipulate food effectively.

In contrast, while lips, tongue, and teeth are prehensive organs in other animals, they are not applicable to chickens. Chickens do not possess lips like mammals, nor do they have teeth within their beaks; instead, their beaks fulfill the functions that lips and teeth would serve in other species. The tongue of a chicken, although present, plays a lesser role in the initial act of prehension compared to the beak. It is primarily used for manipulating food once it has been grasped by the beak. Thus, the beak is the most important organ for prehension in chickens, making it the correct choice.