$MALT$ constitutes about _______ percent of the lymphoid tissue in human body.

Why is an antibody molecule represented as $H_2I_2$ ?

An antigen is

What is false for Colostrum ?

Select the lymphoid organs from the given choices

$I$. Lymph node $II$. Thymus gland

$III$. Red bone marrow $IV$. liver

$V$. Spleen $VI$. Osteocytes

$VII$. Peyer's patches

The correct option with correct choices is