A diagram showing types of energy by color with labels. From left to right, colors are red, orange, yellow, green, blue, indigo,
violet. Thermal IR and Infrared in a dark red section with label B. Ultraviolet and X-rays are in a dark violet section with label C. Visible light is between Infrared and Ultraviolet with label A on the red end and label D on the violet end. Long wavelengths begin on the left and become shorter on the right end. Use the drop-down menus to identify the type of energy each phrase describes.
The blood is collected in heparinized capillary tubes to prevent clotting. Heparin is a blood thinner and this anticoagulant is produced naturally by mast cells and basophils. But heparin can not dissolve or break the preformed clots.
