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Author Question: The greatest gravitational lensing is produced by the ________ that lie in the centers of massive ... (Read 258 times) |
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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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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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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There are 20 feet of blood vessels in each square inch of human skin.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.