3. what are some examples of human cells that produce proteins for
the human body structure?

Good sources of protein in the diet include meat, poultry, fish, dairy products, eggs, legumes or pulses (beans, lentils and peas), and nuts. Many nutritionists recommend that we eat lean meats and low fat dairy if these foods are part of our diet. Our bodies can make some of the amino acids needed to make our body proteins, but we must obtain the others from our diet. The amino acids whic

Explanation:

"a.) well–developed vascular system."