We did not use a control group in this experiment. What is the purpose of the control group and how could we have set up with one for this experiment? 

The experiment will be faulty

Explanation:

To set up a control group, you pick individuals at random( so you don't just get a group to be of the same character, or opinion).

The control group is vital in every experiment because, sometimes our hypothesis could be mere coincidence or assumptions. So the control group will be compared to the test group to see if the results are correct. Plus look at it this way, without a control group, your hypothesis wouldn't be a theory.

a. population growth is decreasing

-2

+4

-10

-3

-8

-3

so the population decreased by 24 because 3+3+8+10+2=26-2=24.

hoped i !

explanation: