Which system coordinates the body’s response to changes in its internal and external environment? a. lymphatic system. b. nervous system. c. excretory system. d. reproductive system

It is the nervous system! The nervous system is like the control center for the rest of the body. So normally, it sends signals to the rest of the body so it can function properly due to external or internal circumstances. Lets say you are exercising. You start to sweat. Why? The brain is sending signals to the appropriate part of the body to let the function of sweat begin due to your internal and external changes. 

The correct answer of the given question above would be option D. The nervous system is the system that coordinates the body's response to changes in its internal and external environment. It is the organ system that is responsible in the coordination of both voluntary and involuntary functions of the body. 

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.