a control helps to increase the reliability of the results. it allows a scientist to compare it to other group(s) in an experiment. if a scientist notices a significant different btwn the control and the other groups, he can logically conclude that the independent variable has an impact on the dependent variable.
a variable is any factor, trait or condition that can exist in differing amounts or types. there are usually three tpes of variables in experiments: the independent, dependent and contolled. the independent variable variable is the one that is changed by the scientists to figure it's affect on something.
Proteins differ from one another primarily in their sequence of amino acids, which is dictated by the nucleotide sequence of their genes, and which usually results in protein folding into a specific 3D structure that determines its activity.
There are two tidal bulges on the opposite sides of our planet Earth. It is because of the gravitational force of the moon and the inertias counterbalance. The major who is responsible for making the tides is the gravity. The one that counterbalances the gravity is called intertia. And together, they are the ones who are responsible for creating two major tidal bulges on our Earth.
