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period of zygote

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Uploaded by on Feb 10, 2007

animated description of fertilization

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Howto & Style

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License:

Standard YouTube License

  • likes, 6 dislikes

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  • wtf are there all there comments about people on their period! this is about a developing egg!

  • u know Girls get period, pregnant and pain. Boys get food, football and females.

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All Comments (147)

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  • I like the video it gave me hint in my lessons in Biology

  • Thank you dick and balls for not bleeding every month. -:)

  • I have something brown coming out. CAN D

    SOMEONE TELL ME WHAT IT IS???

  • @Music96Girl You Get Your Period When You're 9-16 Not When Your 7, 8, Or Older Than 16!!!!!! Whoever Told You That Some Girls Get Their Period At The Age Of 22 Is A Jackass Lying Bitch.

  • @Metalagirl21 Everyone Gets Their Period More Than 5 Days. It's Weird That You Didn't Know That Little Girl.

  • I'm fourteen and I just started today IN SCHOOL man, how embarrassing I'm in a small school and everyone new I don't know a clue what to my mom keeps explaining it weird!?!?!?

  • I'm lucky I never got cramps just fckn hate them if you were white shorts and it comes back in school god that sux

  • Wtf i thaught it went to the stomach

  • You little kids don't have parents to tak to about this?

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