You should take your resting heart rate after _
a. You have exercised
b. You moved around for a few minutes
c. Sat still for a few minutes
d. Whenever you want to

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