Are shape and morphogenesis independent phenomena?
Amphibian embryos can develop inspite of dramatic deformations produced by constraints in the surrounding medium, and can even ultimately recover a normal morphology. Consequently, no sequential change of shape is necessary for normal morphogenesis and the form of the embryo appears to be determined by cell activities intrinsic to each stage.
D000818:Animals; D002022:Bufo arenarum; D004625:Embryo, Nonmammalian / Q000033:anatomy & histology*; D005260:Female; D008855:Microscopy, Electron, Scanning; D013997:Time Factors