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Author Question: IgM, IgG, IgA, IgD, and IgE: a. Megakaryocytes b. Eosinophils c. Neutrophils d. Stem cells e. ... (Read 120 times) |
In 1864, the first barbiturate (barbituric acid) was synthesized.
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.
As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.