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Cyanide works by making the human body unable to use oxygen.

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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

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The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

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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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Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

The three basic body plans of bilaterally symmetrical animals. The three basic body plans of bilaterally symmetrical animals.
Rotation Rotation–Moving a body part around a central axis. Rotation Rotation–Moving a body part around a central axis.
Human Body by Children Human Body by Children
Planes of the body: coronal or frontal, transverse, and midsagittal. Planes of the body: coronal or frontal, transverse, and midsagittal.
Fuel lines are routed along the frame or body and secured with clips. Fuel lines are routed along the frame or body and secured with clips.
Water is vital for many body functions, but it isn’t stored in the body Water is vital for many body functions, but it isn’t stored in the body
Video: Cell mediated immune response to a viral infection Animation

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