Match the immunological statements in Column I with the appropriate descriptions from Column II
|
Group I |
Group II |
||
|
P. |
Active acquired immunity |
1. |
Complement proteins and interferons |
|
Q. |
First line of defense |
2. |
Direct contact with pathogens that enter the body |
|
R. |
Passive natural immunity |
3. |
Surface barriers |
|
S. |
Second line of defense |
4. |
Antibodies pass through placenta |
1
P – (ii) ; Q – (iii) ; R – (iv) ; S – (i)
2
P – (iv) ; Q – (iii) ; R – (i) ; S – (ii)
3
P – (iv) ; Q – (ii) ; R – (iii) ; S – (i)
4
P – (i) ; Q – (iv) ; R – (iii) ; S – (ii)