Louis Pasteur discovered that a certain bacteria could cause a disease called cholera in chickens. He created the first vaccination against this disease by using the bacteria that caused it. Today, scientists develop new vaccinations based on Pasteur's findings. Which technology would be most helpful to a scientist creating vaccine against a new bacteria?an X raya microscopean ultrasounda telescope

Which of the following types of stars is most likely to end up as a supernova? in graph a, the curve peaks at 800 nm, in the red section of the visible light spectrum. in graph b, the curve peaks at 550 nm, in the green section of the visible light spectrum. in graph c, the curve peaks at 450 nm, in the blue section of the visible light spectrum. in graph d, the curve peaks at 300 nm, in the violet section of the visible light spectrum. a b c d

Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of

Speed is the ratio of the distance of an object moves to