Whats all the zodiac signs in the world ?

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.

Which is essential for finding the biomass of spinach

Tinas calculations of the tarantula found that the spider was able to cover 20 centimeters in 5 seconds what was the average speed of the spider whats the answer, speed, distance and time