Phylum Chordata is the only phylum where all the members have a  backbone.   However, there is more to it than that, especially given that there  are two invertebrate châ¦ordate groups - Urochordata (tunicates) and  Cephalachordata (lancelets) - whose backbone is not in the form of  actual vertebrae.
The answer. Anger is a normal, healthy emotion that we all experience at times. Like any other emotion, anger exists on a continuum with varying degrees of severity. The range of emotions may include minor annoyance, irritation or frustration, all the way up to fury or rage.
You actually feel anger, partially as a result of these involuntary changes in your body: 1  Increased heart rate, 2  increased blood pressure, 3  reddened face, 4  tensed muscles, 5  a tendency to move forward, toward the target of the anger.