Hey There!
Here is your answer:
Your answer is that a experiments should be controlled because the experiment could go out of control which could harm or hurt someone.
Also the definition of a controlled experiment is a part of the experiment that's not touched.
Ex: Water is your controlled experiment that's because our not doing anything to the water.
If you need anymore help just ask me!
Hope this helps!
Infectious Disease Epidemiology Programs primary purpose is to study the ... <span>Contact Diseases</span> are transmitted when an infected person has direct bodily contact with an ... are found on the skin but do not cause illness it is called " colonization. ... a bacterium found in rodents and their fleas in many areas around the world.
I don't know what your question is right here..? But cell division is when one cell copies DNA to make an exact copy to which the cell splits resulting in two daughter cells
Anaerobic Respiration: The incomplete breakdown of glucose<span> WITHOUT </span>OXYGEN<span>resulting in a few ATP's and other high energy molecules. Two types of anaerobic respiration; Alcoholic Fermentation (yeast cells) and </span>Lactic Acid Fermentation<span>(higher animal muscle tissue during heavy activity).</span>
