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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.
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There are approximately 3 million unintended pregnancies in the United States each year.
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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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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.
![These two desert arthropods, a scorpion and a cicada, have evolved very different approaches to livi](https://biology-forums.com/gallery/47/medium_33_08_09_11_10_42_12_1679804.jpeg)
![Aerial photo showing the placement of 24 study plots, each 50 m by 50 m, in the Chihuahuan Desert ne](https://biology-forums.com/gallery/47/medium_33_17_02_12_5_28_58_1947116.jpeg)