Unil
which of the following correctly shows the direction of energy flow through a
simple food chain?
o
a. producer → secondary consumer → primary consumer
o
b. producer → primary consumer
secondary consumer
o
c. primary consumer → secondary consumer → producer
o
d. secondary consumer → primary consumer → producer
submit

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.