Cold and warm air masses that meet but don't move each other, causing a standoff. Can bring many days of clouds and precipitation:

hope it mark me as brainlieast.

the answer is "a.) well–developed vascular system."

explanation:

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,

answer/// to address the needs of adults with mental illness and increase their ability to function;