Question

tudents put the same type of bacteria in 15 Petri dishes. Antibiotic A was applied to 5 dishes, Antibiotic B was applied to 5 dishes and Antibiotic C was applied to 5 dishes. At the end of 2 weeks, the number of bacteria colonies were counted. What is the independent variable?

Answer 1

The type of Antibiotic.

Step-by-step explanation:

The independent variable is the variable that is changed in an experiment.

In this case, there are different types of antibiotics in this experiment.