HAVE SEX WITH THE CHEAPEST SAFTEY PROCAUTIONS.<span />
Answer:
macrophages in the spleen and liver
Explanation:
TO AVOID POISONING BY A BUILDUP OF CO GAS. This is because the detectors help sense when there is too much co gas, and it alerts you if there is because it can be poisonous.
Drinking alcohol daily is shown by research to cause impairment of driving
Answer:
There are 20 amino acids, but only ten are essential.
Explanation: