Physics, 18.01.2020 02:31 edwinn55526
Arthur is testing how well various types of disinfectants can kill e. coli bacteria. he starts with a petri dish that is covered with e. coli. he puts exactly one milliliter of each different disinfectant at a different location on the petri dish. if a disinfectant works, it will eliminate the bacteria in the area in which it was placed. two days later, arthur will measure the amount of bacteria that has been cleared out by each disinfectant. which of the following is a variable in this experiment?
a. the type of disinfectant used
b. the type of bacteria used
c. the petri dish used
d. the length of time that the disinfectant is used
Answers: 2
Physics, 22.06.2019 06:20
Three charge are arranged as shown in the diagram. the magnitude of the net electrical force acting on the +6 uc charge, rounded to the tenths place, is .
Answers: 1
Physics, 22.06.2019 12:30
What would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight
Answers: 3
Arthur is testing how well various types of disinfectants can kill e. coli bacteria. he starts with...
Chemistry, 07.04.2021 19:20
Mathematics, 07.04.2021 19:20
Mathematics, 07.04.2021 19:20
English, 07.04.2021 19:20
Mathematics, 07.04.2021 19:20
Mathematics, 07.04.2021 19:20
Health, 07.04.2021 19:20
Physics, 07.04.2021 19:20
English, 07.04.2021 19:20
Mathematics, 07.04.2021 19:20
Physics, 07.04.2021 19:20
Health, 07.04.2021 19:20