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drewwmary drewwmary
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Posts: 635
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6 years ago
Our biological sex is determined by:
 
  A) hormones.
  B) the chromosomal makeup of the sperm and ovum at conception.
  C) the 21st pair of chromosomes.
  D) the biological mother.
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mia2much39mia2much39
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6 years ago
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drewwmary Author
wrote...

6 years ago
Good timing, thanks!
wrote...

Yesterday
You make an excellent tutor!
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2 hours ago
I appreciate what you did here, answered it right Smiling Face with Open Mouth
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