Answer:
Koch was able to extract and isolate the bacteria.
Explanation:
Kock was a German bacteriologist responsible for adopting the postulates of Friedrich Gustav Jakob Henle, known today as Postulates of Koch. Through these postulates, he was able to extract and isolate bacteria responsible for diseases, in addition to being able to relate these bacteria to the disease they caused.
Answer: Due in part to the Edward Jenner's invention of the small pox vaccine and Louis Pasteur's discovery of bacteria, Health care increased and people began to live longer. The middle and upper classes benefited immediately from the industrial revolution. For workers, it took much longer.
Explanation:
the crop eurpeons fond in the new world was potatoes