Which of the following is a part of the second line of defense against microorganisms?
A) keratin
B) cilia
C) gastric juice
D) phagocytes
Answer: D) phagocytes
Which of the following is a part of the second line of defense against microorganisms?
A) keratin
B) cilia
C) gastric juice
D) phagocytes
Answer: D) phagocytes
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.