Young man, I want to know what drugs you are taking and I want to know now. Where did you get them, from your father's stash? You're doing LSD aren't you. I'm so disappointed in you.
All blood is always red. Look at the skin in the palm of your hands. It's pink, isn't it. Blood. Got embarrassed and blushed? The pink was blood. The only reason veins look blue is because some of them are blue, the blood inside them is red.
True. Un-oxygenated blood is just darker red that blood that has just received oxygen from the lungs. The bright red is mostly caused by iron in the blood oxidizing (just like rust...iron oxide)
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