Over the decades local and global ice ages have lowered sea levels. as a result, there is often a decline in marine diversity due to a) migration of bottom feeders into the region. b) changes in the temperature and salt in water. c) migration of fresh water fish to places near the mouths of rivers. d) formation of breeding grounds for various species in the shallow waters.

B] nitrogen fixationmight be wrong, so correct me.want extra on your answers? just go on my account and go on questions and answer, or ask in the comments!

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.