The wolf population are the predators
I know alligators, crocodiles and many big cats eat them in the wild.
It would be water.
Because inside the cell it contains water. Which means the volume of the cell is influenced by the certain amount of water that's in the cell.<span />
This is an example of Nuclear Technology.
In nuclear technology, the atomic nuclei of radioactive fuel undergo nuclear reaction.
This means that the radioactive fuel undergoes nuclear fission (atomic nuclei separates or splits) or fusion (atomic nuclei fuses or joins).
Nuclear technology then generates atomic energy and releases it in the form of electricity.