Questions

A research paper is an extended article that shows your own assessment or content. When you write an article or essay, you put in everything that you actually know and your own views about the subject.

Types of research papers ::

1. Argumentative papers,
2. Analytical papers,
3. Definition papers,
4. Compare and contrast papers,
5. Cause and effect papers,
6. Reports, and.
7. Interpretive papers.

National security refers to security of a nation state, including its citizens, economy&institutions, is regarded as a duty of govt. It is celebrated every year on 4th March. The 1st National Security Day observed in the year 1972.

Lutheranism, the branch of Christianity that traces its interpretation of the Christian religion to the teachings of Martin Luther. 

The mammalian heartis called myogenic (myo = muscle, genie = originating from). It means the heart beat or the activities of the heart are auto regulated which originates from a muscle called nodal tissue.In the human heart,heartbeat originates and contraction is initiated by a special modified heart muscle known as sinoatrial node. It is located in the right atrium; while the QRS waves are the depolarisation of the ventricles, which initiates the ventricular contraction.The T-wave represents the repolarisation,that is, the return of the ventricles from excited tonormal state.Hepatic portal system is the unique vascular connection that exists between the digestive tract and liver. This vein carries blood from intestine to the liver.