Which glacier in Alaska makes it easy to see the effects of a warming climate? A. Fisher
B. Crane
C. Columbia
D. Mendenhall

air enters through the nose, moves through the nasal cavity, the pharynx, the larynx, enters the trachea, moves through the bronchi andbronchioles till the alveoli.

i believe it's c. the trait for large beaks will be passed on to future generations through natural selection.

since eventually smaller beaks would have to find another source of food or even eventually just die out from the lack of food.

(nitrogen fixation) will be your answer sorry if im wrong