The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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Medication errors are three times higher among children and infants than with adults.
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Everyone has one nostril that is larger than the other.
Stem cells in mammalian development
The cranium of a young infant changes dramatically in shape with age. Initially the child has severa
Development of the External Genitalia
Adolescence is a key period for the development of lifelong interests and career paths.
Social Development
Development of the Digestive System "تطوير الجهاز الهضمي"