Blood is not always red. The colour is dependant on it's exposure to oxygen.
If there is oxygen in the blood it has a red colour. That is why whenever you bleed your blood is red, because it reacts with the oxygen in the air. When there is no oxygen in your blood though, your blood has a blue colour.
Blood is red because red blood cells contain a substance called Hemoglobin. Hemoglobin carries O2 (oxygen) from your lungs to the rest of your body. Hemoglobin contains Iron, which when oxidized, turns red
Red blood cells. They give red colour to your blood.
The color of a red blood cell is dark red when it is deoxygenated.
haemoglobin
the worst colour blood can be is a deep, rich red. the closer it is to that, the worse the blood is.
Haemoglobin. That's what gives red blood cells their colour, too.
Blood red is a vivid deep red colour, similar to the colour of blood.
The colour of the gullet is red as our blood is red in colour.
The colour of all whales' blood is red, not blue.
Red.
red blood cells are red and white blood cells are white
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red
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Blood red.
Red blood cells. They give red colour to your blood.
The blood color of a tiger is red. Like all mammals, tigers have red blood. The color of blood is determined by the presence of hemoglobin, which is a protein that carries oxygen. Hemoglobin is red because it contains iron.