Question

question 4
which bottle environment is the control?
a water in the bottle with no sucrose
b 1% sucrose
c 5% sucrose
d 10% sucrose
e yeast concentration
question 5
why did you do the water bottle with no sucrose?
a it was the control
b it was a positive example of carbon dioxide production
c it was to have a fourth bottle in the experiment with out having to use costly sucrose
d it was to provide yeast a swimming hole

Explanation:

In an experiment, the control is the group that does not receive the treatment (in this case, the addition of sucrose). The water in the bottle with no sucrose serves as a baseline to compare the effects of different sucrose - concentrations on the experimental outcome. For the second question, the water bottle with no sucrose is the control to provide a reference point for comparison.

Answer:

Question 4: A. Water in the bottle with no sucrose
Question 5: A. It was the control