The fast block to polyspermy in sea urchins
A) results from an influx of sodium ions across the egg's plasma membrane.
B) occurs after the slow block to polyspermy.
C) results from an influx of sodium ions across the sperm's plasma membrane.
D) prompts the acrosomal process to form.
E) results from release of calcium ions by the endoplasmic reticulum.
Correct Answer:
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