Final answer:
Viscosity refers to the resistance of a liquid to flow. It is a measure of a fluid's thickness or resistance to flow. Viscosity is influenced by factors such as intermolecular forces and the presence of plasma proteins and formed elements in the fluid.
Step-by-step explanation:
Viscosity refers to the resistance of a liquid to flow. It is a measure of a fluid's thickness or resistance to flow. Liquids with a higher viscosity, such as honey or motor oil, flow more slowly than liquids with a lower viscosity, such as water or gasoline. Viscosity is influenced by factors such as intermolecular forces and the presence of plasma proteins and formed elements in the fluid.