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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
Approximately 25% of all reported medication errors result from some kind of name confusion.
![The rotifer, Brachionus calyciflorus, is a large predator that consumes the smaller algae, Chlorella](https://biology-forums.com/gallery/47/medium_33_17_02_12_5_35_26_1970654.jpeg)
![Epidemiologists look for the causes of disease, such as toxic waste and industrial pollution, at the](https://biology-forums.com/gallery/47/medium_273688_23_02_15_7_45_12_20863285.jpeg)