Which behavior is most likely to increase your chance of developing a cancer?
a. spending too many hours in the sun
b. eating too many vegetables
c. sleeping too much
d. taking vitamins

A. spending too many hours in the sun is a good way to cause skin cancer. It can be avoided by using the correct protection of sun screen. It is best to make sure that you have the correct solar proofing to ensure that you're getting optimal protection from the suns harmful rays. There is not such thing as eating too many vegetables, and taking vitamins is good for you, but sleeping too much isn't good either. It can result in you feeling tired all the time.

Where's the picture of the model?

Dna strands are split apart to allow an opening for replication. the opening has two replication forks so synthesis goes toward them in 5' to 3' direction.