Goblet cells of the alimentary canal are modified from:

Given below are two statements.
Statement $I$: Since human beings have different kinds of teeth fitted in two jaws,the dentition is described as diphyodont.
Statement $II$: Human beings have four different kinds of teeth,hence it is described as heterodont.

The $Valve$ $of$ $Kerckring$ is another name for:

What is the number of canines in each jaw of a human adult?

Pernicious anemia is caused by the deficiency of which vitamin?

Brunner's glands occur in