Why do you think the dna is stored cold with the instagene matrix after boiling the samples?

The DNA is stored cold with the instagene matrix after boiling samples in order to slow bacterial growth. In that way, you will greatly slow down the activity of any remaining enzymes that could harm your DNA. Most likely it is a way of preserving the DNA and to avoid it bacterial contamination.

The answer your looking for is a food chain grid. it describes how nature can support itself and survival of the fittest comes into play..