In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
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Question: Sociobiology is the historical outgrowth of _ prerequisite trends.

Answer: three


Question: Unipolar motors have _ coils and are likely to have five or six wires attached.

Answer: four


Question: Nymphs pass through _ stages and reach adulthood by late august.

Answer:
five