Feeling slightly uncomfortable during exercise a) is a signal that something is wrong. b) is completely normal and is to be expected c) means that you're completely out of shape d) can indicate that there's a problem with your heart

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

Felicia has a respiratory infection and has been coughing up a lot of mucus. she knows this means that her respiratory system is working to restore balance by getting rid of the invasive materials from her lungs. how does this happen?

Mechanical sissy washers are required to have