Fertilisation.
D000818:Animals; D002118:Calcium / Q000378:metabolism; D005260:Female; D005306:Fertilization; D006863:Hydrogen-Ion Concentration; D008297:Male; D008564:Membrane Potentials; D009865:Oocytes / Q000502:physiology*; D010063:Ovum / Q000502:physiology*; D013094:Spermatozoa / Q000502:physiology*; D015053:Zygote / Q000378:metabolism
D002118:Calcium