What is the difference between using recombinant dna and gene therapy

Ihave a really high metabolism and only weigh 70 pounds (13 almost 14). people always ask me two questions: do you ever eat and how do you eat so much and stay so skinny.i am worried that a high metabolism wont me forever. what are some safe steps i can take to maintain being fit. (also, i already work out i am a dancer so i get cardio a lot)

When making french onion soup, how do you prepare the onions? a.sweat and caramelize b.burn c.steam d.caramelize and add mayo e. add no stock.

Which of the following is a health risk associated with ground-level ozone? a.cataractsb.skin cancerc.respiratory illnessd.all of the above