Final answer:
Chicken and eggs are the foods from the list that are high in protein. Pasta, watermelon, and lettuce are not high in protein. It's important to consume a variety of protein-rich foods in one's diet.
Step-by-step explanation:
From the list of foods provided, chicken and eggs are high in protein. We know that meats such as chicken and eggs are rich in protein which is essential for the body's repair and growth. Unlike these, pasta, watermelon, and lettuce, while having some protein, are not considered high protein foods.
Protein is a key nutrient for the body, and it is recommended to have a varied diet that includes different sources of protein. Examples of high-protein foods include beans, peanuts butter, steak, various meats like liver and fish, and dairy products. For a healthy diet, one should include lean meats and prepare them using methods that add little or no saturated fat.