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Author Question: A region of the United States with a high concentration of karst lakes is located in ____. a. ... (Read 88 times) |
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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
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The human body produces and destroys 15 million blood cells every second.
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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.
On the slopes of Chimborazo, a 6,310 m high volcanic peak in the Andes Mountains of Ecuador, Alexand
Zebras are several species of African equids (horse family) united by their distinctive black and wh