In which purchasing method does the pharmacy buyer place separate orders with each pharmaceutical company, then receive separate shipments of drug products?

The five-volume book De Materia Medica contained information on more than 600 plants and minerals. It was written by:

A) Mithridates. B) Hippocrates. C) Galen. D) Dioscorides.

The hepatic artery delivers blood to the:

A) liver B) heart C) legs and lower trunk D) arms