Specimens collected by the ________ method can avoid contamination by germs from the genital area, and the patient can perform the procedure

Leukocytes are ________ blood cells

a. white b. red c. yellow d. pink

At what point in the Bunnell Life Pulse High-Frequency Jet Ventilator, shown in the following figure, should a bacterial filter be placed?

a. A c. C b. B d. D