Angioedema is caused by an allergic reaction to something you've eaten, an insect bite, pollen allergies, or a medication you've taken. 1  It causes a swelling of the lips, face, and tongue, which usually occurs rapidly. It can also sometimes be accompanied by redness or bumps (hives). Due to the swelling, you may have difficulty talking. Angioedema can also cause swelling of the airway and difficulty breathing, which may be life-threatening.
holocentric chromosome. (genetics). A chromosome with centromer; activity/spread along its entire length.1  Facebook.olocentric chromosome. (genetics). A chromosome with centromer; activity/spread along its entire length. 1  Facebook.
Â· just now. Report Abuse. The Heliocentric Theory states that the Sun is the center of our solar system. The Geocentric Theory says that the Earth is the center and everything revolves around us (which isn't true, by the way).