A small drop of blood contains millions of blood cells and surprisingly the liquid phase of blood is actually not red. Only the red blood corpuscles are red and they give blood its famous color. A close look at a drop of blood unveils the true nature of this mysterious fluid. The small size of this blood drop also makes it coagulate extremely fast. This drop essentially became a clot in under a minute. Higher magnifications show the individual cells and it is even possible to observe the fact that red blood corpuscles do not have a nucleus.
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