A highly vaccinated community maintains , a kind of group resistance that helps protect even the unvaccinated from contracting the disease.

The load is the pivot point of a lever.

Which statement best illustrates that problem solving can create new medical devices? robert hooke was in charge of verifying the information that was sent to the royal academy. william harvey did experiments with apes to learn about the circulatory system. the stethoscope was invented because the physician did not want to put his head on women's chests to listen to their heart and lungs. anton van leeuwenhoek was a very curious man and looked at just about everything under this microscope.

Bloodborn pathogens are infectious microorganisms carried by what?