Which acts as both a physical and chemical barrier against pathogens? skin lymph blood mucus

Patrick’s parents are worried that he may face discrimination in his new neighborhood. which factor is most likely to cause worry to his parents? a. patrick has unusual pets at home. b. patrick belongs to a different culture than that of the majority group. c. both patrick’s parents hold jobs outside the home. d. patrick likes a particular sport.

The concept of overall includes a person's emotions, social skills, and mental state as well as his physical well being. wealth health condition appearance

China was the world's leading steel producer in 2006. what changes would you expect to be taking place in china?