Physical and chemical barriers that form the first line of innate defense include
A) the acidity of the stomach.
B) tear fluid from the eye.
C) an un-punctured skin.
D) mucus and cilia of the respiratory tract.
E) All answers are correct.
Correct Answer:
Verified
Q12: Which is an example of passive immunity?
A)
Q13: What is not part of the innate
Q14: Fever is considered a defense mechanism because
Q15: Which is an example of active immunity?
A)
Q16: You would know that a viral infection
Q18: Special cells produced by the immune system
Q19: A molecule that stimulates an immune-system reaction
Q20: A primary "antigen presenting cell," a cell
Q21: An exaggerated attack on a harmless antigen
Q22: The primary function of a vaccine is
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents