Appearance. The great black wasp is a very large wasp species, as its name infers. This wasp is black, mono-colored and without colored stripes, spots or other noticeable patterns on the body. Adult females of the species reach about 1-1 Â½ inches long and are a little larger than the males.ehavior, Diet & Habits. The commonly considered distribution of this wasp is the eastern 2/3 of the U.S. Great black wasps are not aggressive due to the fact they do not have a colony to defend and are categorized as solitary wasps.
Sudden drops in blood pressure can be life-threatening. Causes of this type of hypotension include: 1  Loss of blood from bleeding. 2  Low body temperature. 3  High body temperature. 4  Heart muscle disease causing heart failure. 5  Sepsis, a severe blood infection. 6  Severe dehydration from vomiting, diarrhea, or fever.
There is also no specific number at which day-to-day blood pressure is considered too low, as long as none of the symptoms of trouble are present. Symptoms of low blood pressure. Most doctors will only consider chronically low blood pressure as dangerous if it causes noticeable signs and symptoms, such as: Dizziness or lightheadedness. Nausea. Fainting (syncope) Dehydration and unusual thirst. Dehydration can sometimes cause blood pressure to drop.