Can someone please help me? :( I will give brainliest!!

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.

Gram-negative bacteria have a cell wall that is! and does not accept the stain, making itappear

2points what do bacteria have in common with the cells of other living organisms?