There's another strong line of evidence that dinosaurs weren't strictly monochromatic: the brilliantly colored plumage of modern birds. Birds--especially birds that live in tropical environments--are some of the most colorful animals on earth, sporting vibrant reds, yellows and greens in a riot of patterns.he earliest dinosaur models displayed to the public, at England's Crystal Palace exposition in 1854, depicted Iguanodon, Megalosaurus and Hylaeosaurus as looking very much like contemporary reptiles, complete with splayed legs and greenish, pebbly skin.
Blood Pressure Graph By taking your pulse, you can feel that blood pressure fluctuation with each heartbeat. The pulse which you feel is actually a pressure wave that travels from your heart though your arteries Systolic Pressure Systolic pressure is the maximum pressure exerted by the blood against the artery walls. It results when the ventricles contract.
- arterial pressure not constant as volume of blood entering arteries during systole is 1/3. greater to volume of blood leaving arteries during diastole. â¢ systolic pressure: highest pressure in arteries at peak of ejection (120 mm Hg) o only 1/3 of blood that enters arteries during this period leaves these vessels.