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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
![Details of plant population biology from repeat photography: (a) saguaro cactus in MacDougal Crater,](https://biology-forums.com/gallery/47/medium_33_17_02_12_6_59_59_20212477.jpeg)
![Details of plant population biology from repeat photography: (a) saguaro cactus in MacDougal Crater,](https://biology-forums.com/gallery/47/medium_33_17_02_12_6_59_59_2022115.jpeg)