Questions: Single-celled animal ancestor Using the figure as your guide, put each item listed below in the order in which animals developed body plan traits-from the single-celled animal ancestor to the chordates. A. Radial symmetry B. As adults, radial symmetry and no cephalization C. Mouth-first development D. Multicellularity E. Initial segmentation F. Chordate segmentation G. Tissues: 2 germ layers H. Backbone development I. Anus first development

Transcript text: Single-celled animal ancestor Using the figure as your guide, put each item listed below in the order in which animals developed body plan traits-from the single-celled animal ancestor to the chordates. A. Radial symmetry B. As adults, radial symmetry and no cephalization C. Mouth-first development D. Multicellularity E. Initial segmentation F. Chordate segmentation G. Tissues: 2 germ layers H. Backbone development I. Anus first development