How do scientists mainly use Molecular Biology to provide evidence of evolutionary relationships between two groups of organisms? By comparing the base sequences in their genes

By comparing the phospholipids in their cell membranes

By comparing the ratios of elements in their biomolecules

By comparing the structures of their carbohydrate molecules

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.