The cortical reaction causes
A. the zona pellucida or vitelline layer to harden.
B. the embryo to embed into the uterus.
C. egg membrane depolarization.
D. the sperm to bind to the egg membrane.
E. fast block polyspermy.
A. the zona pellucida or vitelline layer to harden.
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“thermostat”?
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Which one of the following is a human blood type?
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