Answer:
B. is not manipulated and used for comparison
Explanation:A control group is merely a group placed on an experiment for comparing with the experimental group. The control group will receive no treatment and serves as a reference to measure the reactions of the subjects present in the group being tested.
The use of a control group is necessary for an experiment since the experiment has variables being tested and some other factor may arise in the carrying out of the experiment, that previously was not taken into account. It allows then to eliminate also non-essential variables.
Then researchers can make sure the hypothesis, remaining all variables the same for the tested groups will enable to measure the independent variable and see if this variable is to be held accountable for the results as the outcome of the research.
Answer:
I don't know the correct answer for this (cus I'm in year 10)
Explanation:
But in this case, answer C would be definitely wrong becuase answer C is talking about protocell and it not related much to what the question is asking. Hope this can help you find out more about the other 3 answers.
The answer is the first group
A certain gene is only used for certain functions, and if that gene is always going, your body cant turn certain functions on and off, which can ultimatley lead to a lot of health problems
