Answer:
I am a in
Explanation:
I apologize I don't know the answer
The variable that researchers manipulate is the independent variable.
The reason for this is because in experiments different manipulations are often introduced. The sole purpose of these manipulations is to see whether they will affect our independent variable and if they will change its value.
Answer:
It would be the cell theory
Answer:
2
Explanation:
because it being pressure
When B cells encounter a pathogen, they <span>divide and produce large amounts of an antibody. The correct option among all the options that are given in the question is the second option or option "b". I hope that this is the answer you were looking for and it has actually come to your help.</span>
