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In human seminal fluid, the amount of spermatozoa is

  • A.3 thousand spermatozoa/ml
  • B.50 billion spermatozoa/ounce
  • C.25 trillion spermatozoa/pint
  • D.100 million spermatozoa/ml

Answer: D

Human seminal fluid contains about 100 million spermatozoa per millilitre, which is option D. A normal count is at least 15 to 20 million per millilitre, and typical healthy values run to tens or hundreds of millions. The other figures, 3 thousand per ml, 50 billion per ounce and 25 trillion per pint, are not consistent with the normal count. For comparison, 100 million per ml is roughly 3 billion per ounce.

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