Another name for red blood cells is ________

Which type of therapy has been used to successfully treat persistent pulmonary hypertension in newborns?

a. Helium-oxygen (he-liox) c. Bronchial hygiene b. Nitric oxide d. Carbon diox-ide–nitrogen (car-bogen)

What is the internal force that opposes the flow of fluids (equivalent to friction between solid substances)?

a. Conductivity b. Kinetic energy c. Viscosity d. Density