âThey were very sleek and small and had room for two in the front, and one cramped backseat for a third person in the back.â âThey were sleek, simple, perfect vehicles for attacking in large numbers and flying away without a trace.â âThis jacket can be worn with sleek pants and a stylish shirt, or a classic sweater and jeans.â
A red blood cell count is a blood test that your doctor uses to find out how many red blood cells (RBCs) you have in your blood. It is also called an erythrocyte count. The test is important because RBCs contain hemoglobin, which carries oxygen to your bodyâs tissues.
Human blood is red, ranging from bright red when oxygenated to dark red when not. It owes its color to hemoglobin, to which oxygen binds. Deoxygenated blood is darker due to the difference in color between deoxyhemoglobin and oxyhemoglobin. There exists a popular misconception that deoxygenated blood is blue and that blood only becomes red when it comes into contact with oxygen. Blood is never blue, but veins appear blue because light is diffused by skin.