Sealing new homes tightly can be bad for energy efficiency, but good for air quality. True
FALSE- it is good for both
FALSE - it is bad for both
FALSE- it is good for energy efficiency, but bad for air quality

i think its white blood cells

i hope this

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,

hybridization actually occurs frequently in nature. evolution is derived from the process of hybridization that creates things with different traits. this leads to the species changing and evolution occurring. hope this : )