In biuret, starch, lipid and benedicts test. How can independant variable be manipulated?What are the dependant and independant variables, control group and constants?
The independant variables are the variables that you control and the dependant variable are the variable that take place BECAUSE of the independant variables.
The control group is a neutral group so you have a ';norm'; to base your experiement on. For example if you're testing a pill that contains hormones then you give one group the hormone pill and another group a placebo (sugar pill) and you don't tell the groups which one they're getting. That way you can see whether it's psychological or not.
The constants are pretty much what stays constant.
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