Question

Sandra wanted to test the effectiveness of various kitchen cleaners, so she performed the following experiment.

First, she prepared four agar plates with the same bacterial density (i.e., the same number of bacteria per plate). Then, she coated the entire agarose surface of one plate with 5 mLs of a particular kitchen cleaner. Finally, she repeated this step two more times with two other kitchen cleaners.

One day later, she noted the following bacterial colony growth patterns.



Sandra wanted to test the effectiveness of various kitchen cleaners, so she performed the following experiment.

First, she prepared four agar plates with the same bacterial density (i.e., the same number of bacteria per plate). Then, she coated the entire agarose surface of one plate with 5 mLs of a particular kitchen cleaner. Finally, she repeated this step two more times with two other kitchen cleaners.

One day later, she noted the following bacterial colony growth patterns.



What can be concluded from observing these plates?
A.
Cleaners 2 and 3 are the most effective.
B.
All of the cleaners are equally effective.
C.
Cleaners 1 and 3 are the most effective.
D.
Cleaner 2 is the most effective.

Answer 1

hai hai hai do u want this question answered @keilymiranda