<span>Controlled variable is a variable that was made constant in the research. That was because the controlled variables can influence the dependent or independent variable. If the variables is not made constant, it can alter the research result and made it invalid.
In this case, </span>the caffeine and alcohol intake might alter the physical activity or the blood glucose so it should be controlled.
The plastic bags held
more weight compared to the paper bags. The breaking points for the
plastic bags are the handles. The weak points for the paper bags are the bottom
and sides of the bag. The plastic bags held more weight and could conform to
different shapes and stretching characteristics.
Bacteria can convert nitrogen in the air into a form plants can use
B) A disease can destroy everything
Position and movment are controlled and uncontrolled by climax or orgasms
