Doppler echocardiography. Doppler echocardiography is a procedure that uses ultrasound technology to examine the heart or blood vessels. An echocardiogram uses high frequency sound waves to create an image of the heart while the use of Doppler technology allows determination of the speed and direction of blood flow by utilizing the Doppler effect.
Confidence votes 35. Watermelons are thought to be indigious to Africa where they have been found growing wild. In the 1600s there were watermelon growers in Massachusetts and Florida. Watermelons can be grown almost anywhere but do best in humid areas.I have a freind in Montrael who grows watermelons.He uses black plastic on the ground to amplify the suns heat.n the 1600s there were watermelon growers in Massachusetts and Florida. Watermelons can be grown almost anywhere but do best in humid areas. I have a freind in Montrael who grows watermelons. He uses black plastic on the ground to amplify the suns heat.
Wild watermelons originated in southern Africa. The watermelon can be classed as both a fruit and a vegetable. It is a fruit because it grows from a seed, has a sweet refreshing flavor, and is loosely considered a type of melon (although it is actually a type of berry called a pepo). It is a vegetable because it is a member of the same family as the cucumber, pumpkin and squash. It is also harvested and cleared from fields like other vine growing vegetables. The watermelon is the official state vegetable of Oklahoma. By weight, a watermelon contains about 6% sugar and 92% water.