An increase in exposure factors usually is required in which of the following circumstances?
1. edema
2. ascites
3. acromegaly
a 1 only
b 1 and 2 only
c 1 and 3 only
d 1, 2, and 3

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,

la transducción de señal ocurre cuando una molécula de señalización de fluido extracelular activa un receptor de superficie de la célula.