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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

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Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

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Approximately 500,000 babies are born each year in the United States to teenage mothers.

Developmental regulation of human globin genes Developmental regulation of human globin genes
The degree of cerebral cortex folding in different mammalian species. The brains are not shown to sc The degree of cerebral cortex folding in different mammalian species. The brains are not shown to sc
These species are all at risk of extinction. Species with slow life-h These species are all at risk of extinction. Species with slow life-h
muscles human muscles human
Human activity has released carbon from sequestration in long-term reservoirs Human activity has released carbon from sequestration in long-term reservoirs
Cast of a Fossil Dunkleosteus, with a human to illustrate scale Cast of a Fossil Dunkleosteus, with a human to illustrate scale
Video: Methods that regulate pH

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