Questions

Three main enzymes, pepsin secreted by the stomach and trypsin and chymotrypsin secreted by the pancreas, break down food proteins into polypeptides that are then broken down by various exopeptidases and dipeptidases into amino acids.

Hence, digestion of protein begin in stomach.

The medicinal branch of science that deals with the study of skin, hair and nails, their structure, functions and its diseases is called as Dermatology and the person who specializes in that is called as Dermatologist.

An oligarchy is the form of government which is rule by few form and that few people may be military control, or by wealthy society or through ethnic identities.

The order may vary from compiler to compiler.

Here the multiplication will happen before the addition , but in which order the functions would be called is undefined. In an arithmetic expression the parentheses tell the compiler which operands go with which operators but do not force the compiler to evaluate everything within the parentheses first.

James Madison was the one who became President in the future after writing The federalist papers. Alexander Hamilton, James Madison and John Jay were the three who wrote The federalist papers. 

Sensation is the activation of the receptors by stimuli.