Lysozyme that is present in perspiration, saliva and tears, destroys
certain types of bacteria
all viruses
most virusinfected cells
certain fungi.
In embryonic stage $RBCs$ develop in
The inability to distinguish between self cells and non-self cells may lead to
Sprain is caused due to excessive pulling of
Main barrier which prevents the entry of disease's causing organism in our body is
Which of the following is not correctly matched