The Hox genes came to regulate each of the following in what sequence, from earliest to most recent? 1.identity and position of paired appendages in protostome embryos 2.anterior-posterior orientation of segments in protostome embryos 3.positioning of tentacles in cnidarians 4.anterior-posterior orientation in vertebrate embryos

Animal diversity is the variety of animals that have resulted from adaptations and modifications to their internal and external morphology, shape, size, and behavior.