Why did medical laboratories become so important in the late 1800s? O Pathogens had just been identified, and labs were needed to see them.
X-rays were discovered, and doctors began to order them often.
O Scientists had just discovered uroscopy and what it could tell them.
Matteucci began experimenting with electrical impulses in frogs.

Look at the graph about the barriers to working out. what would 20 percent of the population report as a barrier for working out? inability to devote thirty minutes a day to working out lack of interest with creating a detailed workout schedule not having enough money to pay for yearly gym membership living in a community that does not have parks or a gym facility