Final answer:
The listed food items such as various meats, eggs, and fish, are all protein-rich foods, which are essential for body growth and repair.
Step-by-step explanation:
The commonality among the listed food items such as 'Roasted chicken', 'Poached eggs', 'Scrambled eggs', 'Bologna, turkey', 'Frankfurter, beef', 'Ham, sliced, extralean', 'Kielbasa, prk', 'Hamburger w/toppings', 'Hotdog, plain', 'Pork', 'Sardines in oil', 'White tuna in water', 'Chicknoodl soup', and 'Splt pea' is that they are protein-rich foods. These foods include a variety of meats, poultry, and fish, all of which are known sources of high-quality protein essential for body growth and repair. Information such as meat, dairy, eggs, soy, fish, whole grains, and cereals being sources of protein supports this commonality.