What is not a barrier that contains substances to help fight off foreign substances from impacting the body?
A) Saliva
B) Skin
C) Hair
D) Gastric juices
Correct Answer:
Verified
Q4: What is the term when the immune
Q5: Humoral immunity is
A) the transformation of B
Q6: What element of the immune system is
Q7: Cellular immunity is characterized by this type
Q8: This type of lymphocyte matures in the
Q10: What is the internal line of defense
Q11: Explain the two types of immunity.
Q12: What happens during the antigen-antibody reaction?
Q13: How does the immune system distinguish self
Q14: There are two categories of white blood
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