Well, honey, a control tube is used to provide a baseline for comparison in experiments or tests. It's like having a 'normal' sample to measure against the 'experimental' sample. Without it, you might as well be driving blindfolded on a rollercoaster - dangerous and pointless.
A solvent.
The tube that contains only glass beads is called the control tube. It is used as a control in the germinating seed experiment to provide a baseline comparison for the experimental tube with seeds.
A control in an experiment is a group or sample that is used as a basis of comparison. In this case, the uninoculated broth tube serves as a control to show what the nutrient broth looks like without any microorganisms growing in it. Controls are important in experiments to help researchers determine the effects of the variables being tested.
The purpose is to hold DNA and control your body traits.
The purpose is the introduce the fuel gas in the burner.
the purpose of the of pollen tube is to fuse or join with the ovules to cause fertilization.
The purpose of the overflow tube in a toilet is to prevent water from overflowing the tank by directing excess water into the bowl.
the purpose of a control system is to manage
The head end of a tube can be the closed end. This depends on what the tube's purpose in the car is.
The purpose of a PEG feeding tube is to feed someone when they are incapable of feeding themselves. PEG is an acronym for percutaneous endoscopic gastrostomy.
They seal oil/water/dirt out of the plug tube.
To hold air.
The tube is used to store the gasses from the cylinder.
The purpose of the Annoying Orange, like many You-tube shows, is to entertain.
it is the tube that the pollen travels down to the ovarys
You is obvious. YOU control the content. Tube may be in reference to the old monitors, the cathode ray TUBE monitors.
A solvent.