Draw three different food chains, from this food web, that contain an aphid.

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

Which is one example of a phenotypic change that is not genetic

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.