Intrinsic factor that helps in the absorption of vitamin $B_{12}$ is secreted by

Bilirubin and biliverdin are derived from which of the following?

The duodenum has characteristic Brunner's glands,which secrete .......

Which is the correct statement for the liver?

Match the following ducts in column $A$ with their respective organs or glands in column $B$:
$A$ (Duct) | $B$ (Organ/Gland)
$A.$ Stensen's duct | $1.$ Gall bladder
$B.$ Ducts of Rivinus | $2.$ Liver
$C.$ Duct of Wirsung | $3.$ Parotid gland
$D.$ Ductus choledochus | $4.$ Sublingual gland
$E.$ Wharton's duct | $5.$ Pancreas
$F.$ Cystic duct | $6.$ Common bile duct
$G.$ Hepatic duct | $7.$ Submaxillary gland
The correct matching sequence $(A, B, C, D, E, F, G)$ is:

$A$ good source of lipase is