The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
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Cyanide works by making the human body unable to use oxygen.
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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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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.
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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.
dental tools
The three stages of a specific immune response.
Disorders associated with specific stages of embryonic development
Specimen collection techniques
Heritability (h2) of Addiction to Specific Addictive Agents