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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

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Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

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Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

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Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

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A typical engine oil cooler. Engine coolant flows through the cooler adjuster that fits between the ... A typical engine oil cooler. Engine coolant flows through the cooler adjuster that fits between the ...
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A multiport fuel injector. Notice that the fuel flows straight through and does not come in contact ... A multiport fuel injector. Notice that the fuel flows straight through and does not come in contact ...
Energy flows from the environment into living organisms, then back to the environment Energy flows from the environment into living organisms, then back to the environment
Video: Exercise and cardiac output

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