Arrange in the correct sequence these components of the mammalian immune system as it first responds to a pathogen
I) Pathogen is destroyed.
II) Lymphocytes secrete antibodies.
III) Antigenic determinants from pathogen bind to antigen receptors on lymphocytes.
IV) Lymphocytes specific to antigenic determinants from pathogen become numerous.
V) Only memory cells remain.
A) I ? III ? II ? IV ? V
B) III ? II ? I ? V ? IV
C) II ? I ? IV ? III ? V
D) IV ? II ? III ? I ? V
E) III ? IV ? II ? I ? V
Answer: E
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