A field description of the cleavage process in embryogenesis.
D000818:Animals; D002452:Cell Count; D002455:Cell Division; D002816:Chordata, Nonvertebrate / Q000196:embryology; D004625:Embryo, Nonmammalian / Q000166:cytology*; D008195:Lymnaea / Q000196:embryology; D008954:Models, Biological; D009024:Morphogenesis