For yoko's physical fitness class, she is supposed to do a certain amount of aerobic exercise on her own. which of the following would be the best option?
1.sit-ups
2.push-ups
3.lifting weights
4. dancing

While ice skating, alice slipped and injured her knee. what is one way alice might prevented this injury?

Which of the following could use reverse transcriptase to transcribe its genome? a) ssrnab) dsrnac) ssdnad) dsdna

Emma recently found out she was pregnant.every thursday evening for the next six weeks, emma and her mother will attend a special program that prepares pregnant teens to become mothers.during the first class, emma learned about the stages of childbirth.what was the order she was taught? first, emma learned about  .then, she learned about the    stage.next, emma learned about  .last, she learned about the    stage