Select the correct pair
Column $- I$ | Column $- II$ |
$(A)$ Physiological barrier | $(1)$ Skin |
$(B)$ Cellular barrier | $(2)$ Macrophages |
$(C)$ Physical barriers | $(3)$ interferons |
$(D)$ Cytokine barriers | $(4)$ Tears |
$(5)$ Mucus |
Antigen binding site in an antibody is found between
The principle function of the lymph node in the man is
The thymus is a lobed organ located near the $...A...$ and beneath the $...B... $ The most appropriate combination for $\mathrm{A}$ and $\mathrm{B}$ is
Why is mother's milk considered the most appropriate food for a new born infant ?