B. Northern forests of Canada with 35 feet of annual snowfall and an average temperature of 25 snowshoe hares, and conifer trees

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.

Control variable- changedependant variable- stays the samechanging- food itemsdependant- presences of proteins

Aplant cell has vacuoles and a cell wall

It is called the medulla oblongata or people usually call it medulla. it is the lower half of the brain stem continuous with the spinal cord.