The answer is D
Because it is kinda basic
Antibiotics should be the answer
It is a 5% more chance that boys will be diagnosed with autism than girls.
If you can give me the brainliest award!!
Answer:
the pH
Explanation:
The condition that should not be kept the same in each of the five test tubes is the pH.
Since <u>the aim of the experiment is to investigate the effect of pH on the activity of the lipase enzyme</u>, the pH is, therefore, the <em>independent variable</em>. Thus, it must be controlled or varied in all the test tubes in order to see its effect on the activity of the enzyme, which, in this case, would be the dependent variable.
