Lowering the risk can help your health body and mind state feel better throughout the diseases your body has suffered.
Answer:
yes of course they have always been able to do it
DNA helps scientists to better classify organisms is because each organ has a specific kind of DNA. For an example, brains and hearts have many small types of RNA. So if a scientists see some RNA they know that its a heart or a brain.
I guess its A because the key word it MAD and it seems the most aggressive? Correct me if I'm wrong