Birds with large, sharp beaks have survived better than the ones with small and medium beaks on an island where the trees bear hard-shelled nuts. which type of selection does this example represent?

the correct answer is anaphylaxis.

anaphylaxis is a condition caused by insect bites, foods, medications, manifested by tongue swelling, shortness of breath, vomiting, low blood pressure. it sometimes may occur without an obvious reason. it is treated with epinephrine injection.other tretments include antihistamines and steroids,