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After the head of one sperm has entered an ovum, no… | StemPy Lab
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After the head of one sperm has entered an ovum, no other sperm can enter. Which statement explains this?
Biology
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High School (11–12)
Human Body › Human Reproduction
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After the head of one sperm has entered an ovum, no other sperm can enter. Which statement explains this?
The other sperms lose their acrosomes at once
The entry of the first sperm causes changes in the ovum that block the entry of other sperms
The ovum has already completed meiosis I
The zona pellucida is destroyed by the first sperm
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