Which organisms, because of the sequence of events establishing the head mesoderm and notochord, have what Professor Scott Gilbert calls a 'head start' (i.e., anterior structures develop earlier than posterior structures)?

MCQs on the field of developmental biology from its origins to the present day, from seminal historical experiments to modern techniques and the mechanisms of development. Covers a variety of organisms from their start at fertilization through the stages of their development and on to entire organismal and post-embryonic development, as well as the molecular and genetic regulations involved in these processes.