Answer:
I got to the next level on brainly
Animals use the respiratory system to breathe in oxygen and other gases and expel gases like CO2, right? O2 in, CO2 out.
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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.</span>
Take one tab by mouth up to four times a day, before meals and at bedtime.
