which are correct examples of physical (p), chemical (c), and biological (b) barriers?\no p: complement…

which are correct examples of physical (p), chemical (c), and biological (b) barriers?\no p: complement system; c: saliva; b: coughing\no p: coughing; c: saliva; b: complement system\no p: coughing; c: sneezing; b: complement system\no p: complement system; c: saliva; b: sneezing

which are correct examples of physical (p), chemical (c), and biological (b) barriers?\no p: complement system; c: saliva; b: coughing\no p: coughing; c: saliva; b: complement system\no p: coughing; c: sneezing; b: complement system\no p: complement system; c: saliva; b: sneezing

Answer

Answer:

B. P: coughing; C: saliva; B: complement system

Brief Explanations:

Coughing is a physical expulsion action. Saliva contains enzymes and other chemicals for defense. The complement system is a biological - based immune mechanism.