Beta-adrenergic agonists or Beta-agonists are medications that relax muscles of the airways, which widens the airways and results in easier breathing.They are a class of sympathomimetic agents which act upon the beta adrenoceptors. In general, pure beta-adrenergic agonists have the opposite function of beta blockers.ost agonists of the beta receptors are selective for one or more beta-adrenoreceptors. For example, patients with low heart rate are given beta agonist treatments that are more cardio-selective such as dobutamine, which increases the force of contraction of the heart muscle.
A character is a person presented in a dramatic or narrative work, and characterization is the process by which a writer makes that character seem real to the reader. A hero or heroine, often called the protagonist, is the central character who engages the readerâs interest and empathy. The antagonist is the character, force, or collection of forces that stands directly opposed to the protagonist and gives rise to the conflict of the story.
the answer to a main character is a person or living thing that is talked about mostly or has a great part in the book,play.movie ect. the main character on a story can be one â¦ person or a group of people, the main character usually leads to the introduction of the story then to the climax and the to the end.o in other words the main character in a story is a leader. well usually the main character is the one who is most mentioned The main character in a story is the character who the story is mostly talking about.