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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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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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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Tracheostomy. A tracheotomy, or incision into the trachea, is performed to create an opening into th Tracheostomy. A tracheotomy, or incision into the trachea, is performed to create an opening into th
A medical assistant assists with minor surgery performed in the medical office. A medical assistant assists with minor surgery performed in the medical office.
Stripping is performed with deep pressure along the length of a muscle to its attachment. Parallel ... Stripping is performed with deep pressure along the length of a muscle to its attachment. Parallel ...
Tapping. Tapotement performed with the fingertips of a relaxed hand. Tapping. Tapotement performed with the fingertips of a relaxed hand.
Pincement. Tapotement performed by gently picking up superficial tissues between the thumb and the ... Pincement. Tapotement performed by gently picking up superficial tissues between the thumb and the ...
The following sentence is written in the passive voice: The man rode his skateboard to work ... The following sentence is written in the passive voice: The man rode his skateboard to work ...
Video: Labor and Childbirth - The Three Stages of Labor: Dilation, Expulsion & Placental مراحل الولادة

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