Answer:
1)Stem cells can be used to study development. 2)Stem cells may help us understand how a complex organism develops from a fertilised egg. ...
3)Stem cells could be used to study disease. ...
It is true. if you feel sad, you wont want to go on a run. if you feel happy, youll be more than happy to. it does make a difference. if you dont like soccer, you wouldnt play it. if you had a bad expiernce with golf (somehow xD) you most likely wouldnt feel up to playing it.
Strech until it starts burning then ease up
I will choose all because they all are excersices that can keep your pumping.But i think b because that is a lot of excercise witch is goodfor you.for letter B you will have a total of 50 minutes witch is good.
