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.
Systemic blood pressure is highest in the aorta, and declines throughout the pathway until it reaches 0 mm Hg in the right atrium. Arterial blood pressure reflects how much the arteries close to the heart can be stretched (compliance, or distensibility), and the volume forced into them at a given time.ystemic blood pressure is highest in the aorta, and declines throughout the pathway until it reaches 0 mm Hg in the right atrium. Arterial blood pressure reflects how much the arteries close to the heart can be stretched (compliance, or distensibility), and the volume forced into them at a given time.