Question

Which are the physical (P), chemical (C), and biological (B) immune responses?

1-P: complement system; C: saliva; B: coughing
2-P: coughing; C: saliva; B: complement system
3-P: coughing; C: sneezing; B: complement system
4-P: complement system; C: saliva; B: sneezing

Answer 1

4. p.complement system c.saliva b.sneezing