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Sperm cells release ________ that eat away a mature egg cell's protective coating.
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Sperm cells release ________ that eat away a mature egg cell's protective coating.
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Feb 20, 2019
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Sperm cells release ________ that eat away a mature egg cell's protective coating.
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Sperm cell release enzyme "sperm lysins" that break the protective coating of egg cell
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Feb 25, 2019
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