In Database Systems, a Column Is Also Known as a Key

question 53

True/False

In database systems, a column is also known as a key.

---

Definitions:

Ejection of Blood

is the process during which the heart pumps blood out of the ventricles into the aorta and pulmonary artery during systole.

Viscosity

A measure of a fluid's resistance to flow, describing how thick or sticky the fluid is.

Hematocrit

The percentage of total blood volume made up of red blood cells.

Pressure

The force exerted per unit area.