When do food workers need to wash their hands?

Blood cells bring oxygen to cells and take carbon dioxide away. true or false

Bloodborn pathogens are infectious microorganisms carried by what?

Viruses ) manufacture their own atp, proteins, and nucleic acidsb) use the host cell to copy themselves and make viral proteinsc) use the host cell to copy themselves and then viruses synthesize their own proteinsd) metabolize food and produce their own atp