The answer is C I don’t think this needs more explanation but if needed just ask!
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.
2.) occasionally beneficial
3.) omission of information
4.) addition of information
5.) mistakes in copying
Controlling voluntary body movements, processing information from sense organs, thoughts, and learning abilities.
