Which event listed is most likely to cause a widespread influenza breakout?
a.)the northern portion of the country is affected by winter-like weather patterns.
b.)people do not have immunity to a new strain of influenza virus.
c.)the influenza virus is recognized by host immune systems.
d.)winter precipitation is increased do to global warming.

What mistake did john needham make that caused him to conclude that spontaneous generation for microorganisms occurred? a. he re-contaminated his boiled broth solutions. b. he destroyed the vital force in the solutions. c. he did not boil his broth solutions, only warmed them. d. he failed to seal his flasks of boiled broth. e. he allowed his assistant to conduct the experiment which he did not monitor closely.