Antomci barrier to disease is

Anatomic barrier to disease is

The cytokine barrier among these is

The cytokine barrier among these is:

The cytokine barrier among these is

The cytokine barrier among these is:

The cytokine barrier among these is

In p-n juction, the physical distance from one side of the barrier to the other is know as the ...........barrier and the difference of potential from one side of the barrier to other side is.......known as...........barrier.

A barrier reef develops

A barrier reef develops

A barrier reef develops