Age and nutrition would be considered two
I would say 1,2,&4 because bones cant protect organs from bacteria or sunlight.
<span>the primary purpose of mucus is to coat the passageways of the nose, throat, sinuses, lungs and gastrointestinal tract and keep them from becoming dry. If these passages dried out, their surfaces could crack, potentially providing pathogens with an entryway into the body.</span>
It tells people about U.S citizens have their lives be at risk.
Overweight and obesity may increase the risk of many health problems, including diabetes, heart disease, and certain cancers. If you are pregnant, excess weight may lead to short- and long-term health problems for you and your child.
