sperm

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RADIOhead
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sperm

Post by RADIOhead » Sun May 22, 2011 6:50 pm

only one sperm penetrates the plasma membrane of the ovum as
A. the egg's plasma membrane repolarizes, preventing other sperm from entering
B. it is the only sperm to complete the journey successfully to meet the egg
C. the egg's plasma membrane depolarizes, preventing other sperm from entering
D. the enzymes of the egg's acrosome destroy all non-penetrating sperm

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