I think it is B I had done these.
<span>1) regulation of enzyme activity. 2) regulation of enzyme production.</span>
Answer:
The two factors that decrease the size of a population are mortality, which is the number of individual deaths in a population over a period of time, and emigration, which is the migration of an individual from a place. and then also birth rate
Explanation:
A positive control is when you test your experiment against something where you know what the effects will be, whereas a negative control would be when you test the experiment with something you know will have no effect.
