Dicot flowers on the other hand, tend to have parts in multiples of four.

Demography is the statistical study of human populations.

Demography examines the size, structure, and movements of populations over space and time. 

Vitamin C is also called Ascorbic Acid

A sphygmomanometer also known as a blood pressure monitor,  is a device used to measure blood pressure.

The Pascaline was designed and built by the French mathematician-philosopher Blaise Pascal between 1642 and 1644.