title: Controversy over the fast, partial, temporary block to polyspermy in sea urchins: a reevaluation.
mesh_terms: D000818:Animals; D002462:Cell Membrane / Q000502:physiology; D004553:Electric Conductivity; D005260:Female; D005306:Fertilization; D008297:Male; D008564:Membrane Potentials; D009865:Oocytes / Q000502:physiology; D012617:Sea Urchins / Q000502:physiology*; D013045:Species Specificity; D013084:Sperm-Ovum Interactions; D013094:Spermatozoa / Q000502:physiology*