Staphylococcus aureus causes staph infections. Why is Staphylococcus aureus more dangerous today than it was 100 years ago?

Why is it important that fibrin is insoluble in water?

What types of energy transfers and energy transportations are involved in the domino chain reaction?

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria