Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.
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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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The human body produces and destroys 15 million blood cells every second.
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
Juglans nigra (Black Walnut tree) lower leaf surface
Two-tiered tree
phylogenetic tree
Coconut tree kids drawing
Lifecycle in a tree
The tree of life, highlighting the phylogenetic relationships