title: The ontogeny and phylogeny of cellular differentiation in Volvox.
authors.forename: D L
authors.initials: DL
authors.lastname: Kirk
mesh_terms: D000818:Animals; D002454:Cell Differentiation; D056890:Eukaryota / Q000166:cytology* / Q000235:genetics; D008957:Models, Genetic; D010802:Phylogeny