I thinks its cell division
<span>The space-filling model of a hydrogen molecule would be something like OO , two circles stuck to each other, even squished a little bit. The model for carbon dioxide would be like OOO, with the two circles on the sides a little bigger and squished into the middle circle. </span>
Topoisomerase is the enzyme that can be added to correct the untwisting that is led to strain ahead of the replication fork.
<span>more prey than predators</span>