Why are legumes self sufficient when it comes to nitrogen? A. They have a different way of creating proteins that does not require nitrogen.
B. They have an organic process for using atmospheric nitrogen.
C. They have nitrogen fixing bacteria in their roots that converts nitrogen to nitrates for them.
D. They have bacteria that make them immune to eutrophication.

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.

Ithink b hope that