Fertilization

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Storyboard Description

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Storyboard Text

  • But these sperm are on a mission- to fertilize the female egg and make a baby. 
  • These are sperm. If you are a guy, over a thousand sperm are produced in the veins of your testicles. 
  • But only ONE sperm out of a million are chosen by the egg to fertilize it.
  • But it isn't that easy. The sperm have many obstacles, and many will die.
  • The first obstacle is the fallopian tube, acidic around the walls
  • Most sperm are to weak to even make it to the egg
  • They search for the egg lined on the tube. Sometimes there is now egg at all.
  • They beat the egg, trying to get inside. The egg accepts ONE
  • The egg digs in the egg-
  • And it releases the 23 dna inside of the sperm- half to make the baby. The egg has the other 23.
  • The cell inside doubles, and doubles, and doubles so much that it makes skin and organs- a baby!
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