Adaptive immune responses are directed at pathogen molecules called

The skin includes multiples layers. which of the following is not one of the layers of the skin?

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)

Which is an example of a food group? a. oils b. vegetables c. water d. sweets