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If you usually have a regular cycle, a change in your cycle — such as suddenly having two periods in a month — could indicate a medical condition. Some health conditions cause bleeding that can be mistaken for a period: Pregnancy can cause spotting.
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Meiosis is starts in early development, and doesn't stop until the end of adolescence.
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I will try to give you the best answer by completing your statement.
During a marathon, approximately 99% of your muscles needs are met by the OES or Oxygen Energy System. Energy systems are the ones encharge of distributing the energy you need for a certain act.
A, medieval Europe used bloodletting as a standard treatment.
Answer:
Ludwig van Beethoven was a German composer and pianist. Beethoven remains one of the most admired composers in the history of Western music;
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