Which best describes the scientists who contributed to our current body of knowledge
a. people of all races
b. white males
c. europeans
d. people from south asia

9. the history of life on earth is recorded in

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.

Explain why scientists use the word dominant for certain traits.