The role of enamel is to:

Which is the dental formula of a $5$ year old child?

The posterior part of the soft palate hangs down into the pharynx as a small,finger-like projection called the .......

Kupffer cells of the liver help in . . . . . . .
$i$. Detoxification
$ii$. Synthesis of vitamin $A, D, K$ and $B_{12}$
$iii$. Emulsification of fats
$iv$. Deamination of amino acids
$v$. Phagocytosis

Match the Column $I$ with Column $II$,with reference to human beings:

Column $I$ (Part of the alimentary canal)	Column $II$ (Length)
$i$. Duodenum	$b$. $26 \ cm$
$ii$. Jejunum	$c$. $2.5 \ m$
$iii$. Ileum	$d$. $3.5 \ m$
$iv$. Large intestine	$a$. $1.5 \ m$

The dental formula of human beings is