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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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Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.
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People about to have surgery must tell their health care providers about all supplements they take.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.