Final answer:
Ground beef (hamburger) and ground fish (fish cakes) are sources of protein in our diet.
Step-by-step explanation:
In biology, ground beef (hamburger) and ground fish (fish cakes) can be categorized as sources of protein in our diet. Protein is an essential nutrient that plays a crucial role in building and repairing tissues, supporting immune function, and providing energy. Ground beef and ground fish are both examples of animal-based proteins, while other sources of protein include plant-based options like tofu and legumes.