The area that surrounds the outside of the heart and divides the atria from the ventricles is called:

________ is a staph infection resistant to many antibiotics. It appeared in Europe in the 1960s, which coincides with the first widespread use of antibiotics. A recent study "confirm[s] that the evolution of resistant strains and their spread are primarily driven by antibiotic use." (Use the abbreviation in your answer)

Fill in the blank(s) with the appropriate word(s).

Which term means abnormal development or growth, especially of cells?

What will be an ideal response?