Medications for Coronary Artery Disease. What is Coronary Artery Disease: Coronary Artery Disease is a narrowing or blockage of the small blood vessels that supply blood and oxygen to the heart. It is caused by atherosclerosis,a buildup of plaque in the arteries to your heart. Compare drugs associated with Coronary Artery Disease.
The Medusa phase is the jellyfish form that we're familiar with. Jellyfish live an average of 3 - 6 months in the medusa phase, but could spend years in the polyp phase, with some never actually maturing into a an adult medusa.ellyfish live an average of 3 - 6 months in the medusa phase, but could spend years in the polyp phase, with some never actually maturing into a an adult medusa.
View full size image. The oldest known fossils of jellyfish have been found in rocks in Utah that are more than 500 million years old, a new study reports. The fossils are an unusual discovery because soft-bodied creatures, such as jellyfish, rarely survive in the fossil record, unlike animals with hard shells or bones.