Pasteur encouraged doctors to sanitize their hands and boil or sterilize equipment before surgery. before this, few doctors or their assistants did this and many patients got sicker and even died because of the non-sterile conditions. what gave pasteur this idea?
a) the discovery of anthrax, cholera, and rabies.
b) the use of dead rabbits to produce the rabies vaccine.
eliminate
c) his work proving that unseen bacteria can cause disease.
d) his work proving that dead bacteria may be used as vaccines.

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.