How does chemical coordination take place in animals?

Explanation

Chemical coordination takes place in animals through hormones produced by glands present in animals. Hormones are directly released into the bloodstream to reach the target site and control the function of the target tissue.
Example : Adrenal gland secretes adrenalin which reaches the heart, lungs and gastrointestinal tract. Heart speeds up its pumping action so that more blood could be supplied to the limbs and facial muscles. But activity of the GI tract is slowed down to ensure better blood supply in limbs. Thus, adrenalin prepares the body for a fight or flight situation.