A solution that has 0% salt isto a cell with 40% salt concentration

The solution is hypotonic

Explanation:

Molecules in a solution move from highly concentrated regions to regions of low concentration in an effort to reach a state of equilibrium- where the molecules are equally distributed. This always occurs with the molecules moving down the concentration gradient.

Solutions can be:

hypertonic, or more concentrated; hypotonic- less concentratedisotonic- same concentration

At 40% salt concentration, solution A is hypertonic while the less concentrated solution at 0% salt concentration is hypotonic.

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.

I'm soooo sorry but i can't answer but you can ask another professor