The respiratory system is divided into two parts i. e the air passageway and the lungs. Explain the air passageway and its parts.

It is a channel or part through which air passes specifically : an anatomical part (such as the pharynx and bronchial tubes) involved in respiration Pertussis is a bacterial infection of the air passages leading to the lungs

Idk i think the answer choice is number 1

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.