Question

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

Answer 1

Answer:

c.all the answer choices are correct.

Explanati on:

Because control are used as a reference to negate the normal conditions of the cells.