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blood wallpapers

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Batman The Joker blood
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Outlast
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Megurine Luka Udonnodu Vocaloid anime anime girls
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Miwa Shirow anime anime girls blood demons
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armor artwork blood corpse dragons
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Kikivi anime girls black hair blood glasses
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armor blood dragons fire glowing eyes
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Tekken Blood Vengeance
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artwork blood drinking simple background vampires
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True Blood Season 7 2013
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Lara Croft Tomb Raider blood bow (weapon) women
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blood splash
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Shameimaru Aya Touhou anime anime girls belts
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Aion angels blood stones wings
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Resident Evil Umbrella Corp. artwork blood knives
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Kagura
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Watch Dogs Bad Blood
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The Witcher 3 Wild Hunt Blood and Wine
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Picture of War
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Darkenguard 3
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Tiesto Blood
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Harry Potter Half Blood Prince 1
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Monkeys
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Harry Potter Half Blood Prince Photoshoot
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Blood is a bodily fluid in animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells. When it reaches the lungs, gas exchange occurs when carbon dioxide is diffused out of the blood into the pulmonary alveoli and oxygen is diffused into the blood. This oxygenated blood is pumped to the left hand side of the heart in the pulmonary vein and enters the left atrium. From here it passes through the mitral valve, through the ventricle and taken all around the body by the aorta. Blood contains antibodies, nutrients, oxygen and much more to help the body work. In vertebrates, it is composed of blood cells suspended in blood plasma. Plasma, which constitutes 55% of blood fluid, is mostly water (92% by volume), and contains dissipated proteins, glucose, mineral ions, hormones, carbon dioxide (plasma being the main medium for excretory product transportation), and blood cells themselves. Albumi...

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