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Author Question: Why is mitochondrial DNA often used in construction of phylogenetic trees? (Read 338 times) |
Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.