which things have proteins?

Food that has protein

1. milk

2. any kind of meat

3. cheese

4. yogurt

5. tofu

6. eggs

7. beans

8. protein bars

9. fish

10. sausages

11. bacon

12. beef

13.meat balls

14. nuts (peanuts, walnuts etc)

15. grains

16. salmon

17. potatoes

18. bread

19. rice

20. corn

why silk and wool have proteins?

Spider silk is made of complex protein molecules by the spiders.

Wool is a protein fibre, composed of more than 20 amino acids. These amino acids form protein polymers. Wool also contains small amounts of fat, calcium and sodium.