What is not true about stage 1 of labor? a. lasts an average of 8 hours b. cervix dilates from 4 to 10 centimeters c. contractions are infrequent at this stage d. time to go to the hospital

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)

Although animals share many common characteristics, there is also a great amount of diversity found in animals. which animals are ectothermic, obtain dissolved oxygen in water through gills, have scales, have fins, and live in water?

How could you find out if that advice is based in scientific evidence?