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Author Question: Which of the following is an element in the world-wide spread of agriculture? a. ability to ... (Read 61 times) |
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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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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.