Answer:
In the microscopic level you can use non-toxic chemicals etc and you can aslo keep the food in desirable temperature inorder to prevent it from being rotten, incase of some food get contaminated you can just not use it because it can make you sick or if it only partly contaminated, then you can use the uncontaminated part of it and not use the other part.
Properdin employs the alternative pathway of the complement system. The central c3 protein is cleaved by the generation of c3 convertase. Numerous interaction between the ligands and the subunits of Properdin are involved in activating the pathway.
Answer:
Have daily debates is not a good advice.
Explanation:
Eat colorful fruits and vegetables, like berries, broccoli, carrots, etc. Don't stare at a screen too close, and take a break every hour. Drink lots of water, and try to look far distance.