Ecologists discovered that were dying trout in a stream that ran through some farmland where nitrogen fertilizer was used on the crops. how might you explained what happened?

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.

What part of the cell does 9 represent? a. cytoplasm b. lysosome c. ribosome d. centrosome

Which of the following is the function of the nociceptors? a. detecting odors in the nose b. detecting painful stimuli c. detecting central body temperature d. detecting touch and pressure