Answer: D.) Plant D
Explanation: A control group is composed of the test subject(s) that do not receive any experimental treatment. In this case, Plant D is the control group because it does not listen to any music unlike the rest of the plants.
I believe the answer is B
Answer:
B. Bacteria are introduced to break down hydrocarbons in an oil spill.
A. It only has one parent, so the genetic information will be identical.