In experiment 2, why was the control included in the chemical treatment experiment?

a. to prevent contaminating species from killing the

e. coli

b. to give you a baseline of the expected extent of bacterial growth

c. all the answer choices are correct.

d. to make sure the results were not due to osmotic pressure submit for grading save and finish later

The scientific method is a series of steps followed by scientific investigators to answer specific questions about the natural world. it involves making observations, formulating a hypothesis, and conducting scientific experiments.the steps of the scientific method are •observation-the first step of the scientific method involves making an observation about something that interests you•question-once you've made your observation, you must formulate a question about what you have observed. •hypothesis-once you've made your observation, you must formulate a question about what you have observed. •experiment-once you've developed a hypothesis, you must design and conduct an experiment that will test it.•results-the results are where you report what happened in the experiment. •conclusion-the final step of the scientific method is developing a conclusion.i hope that this you : )