All of the following represent physical and/or chemical barriers that form the body's first line of defense against pathogens EXCEPT which one?
A) tears
B) resident bacteria
C) skin surface
D) earwax
E) antibodies
E
Biology & Microbiology
You might also like to view...
Obligately anaerobic normal flora are found in ________, which is an/are anoxic habitat(s) of the body
A) the kidneys B) the skin C) portions of the oral cavity D) the lungs
Biology & Microbiology
Explain how proprioceptors work
What will be an ideal response?
Biology & Microbiology
The modification of behavior as a result of experience is called
A. association. B. behavior modification. C. habituation. D. learning. E. sensitization.
Biology & Microbiology
Members of which of the following phyla would exhibit ostia and an osculum?
a) Cnidaria b) Cnetophora c) Nematoda d) Rotifera e) Porifera
Biology & Microbiology