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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.
Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
![Reconnect the lower back with the shoulder with a few deep effleurage strokes. Then place one hand ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_12_54_25_33051847.jpeg)
![Reconnect the lower and upper back with horizontal stroking from lower back to shoulders. Keep flat, ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_12_54_25_33055311.jpeg)