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Line 1:
Line 1: − + − ''Every sperm is sacred. − Every sperm is great. − If a sperm is wasted, − God gets quite irate.'' − −
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[[Image:Sperm.png|right|thumb|3 different types of sperm cells:<br>
[[Image:Sperm.png|right|thumb|3 different types of sperm cells:<br />A) motile sperm (spermatozoon) <br>
A) motile sperm (spermatozoon) <br>
B) non-motile sperm (spermatium) <br>
B) non-motile sperm (spermatium) <br>
C) fertilization tube with sperm nuclei <br>
C) fertilization tube with sperm nuclei <br>